1. business and industrial
2. energy
3. oil

Solutions for Environmental Analysis
Optimized Sample Preparation
Determining pollutants in environmental and food matrices requires efficient sample preparation.
BUCHI solutions for environmental analysis offer a variety of instruments for reliable, efficient,
flexible and safe sample processing procedures in the laboratory work flow.
Core messages
BUCHI creates added value with “Quality in your hands”
“Quality in your hands” is the guiding principle that shapes our philosophy and our actions. It
challenges us to provide outstanding services that are precisely tailored to your needs. This means
that we must stay in close contact with our customers. That is why we keep in touch and continue
to work very hard to understand you and your business even better.
We help you by providing high-quality products, systems, solutions, applications and services that
offer you added value. This allows you to focus entirely on your processes and your work.
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Cost-effective
You want to achieve the best possible results using efficient solutions. We help you to handle your jobs and processes economically.
We strive to create a high level of economic benefit and maximum
added value for you.
Easy
Safe
You handle complex processes, do challenging work and want to
focus on what is essential. We support you by providing carefully
designed solutions as well as instruments and systems that are easy
to operate.
You are working in an environment in which safety is a high priority.
By collaborating closely with you, we do everything in our power to
make our products, systems, solutions, applications and services as
safe as possible for people and the environment.
Competent
Global
You need products, systems, solutions, applications and services
that are precisely tailored to your needs. We have the technological
expertise and decades of experience needed to provide competent
support and work with you to continually improve our market services.
You value personalized service and short communication channels.
As an international family-owned business with our own subsidiaries and qualified distributors, we have a presence wherever our
customers are located. Our local staff and the large number of satisfied customers around the world give you the assurance that you are
working with the right partner.
Reliable
Sustainable
You want to be able to rely completely on your partner for products, systems, solutions, applications and services. We guarantee
the quality and functionality of our equipment and will continue to
help you quickly and efficiently whenever something does not operate to your satisfaction.
You prefer a partner who acts responsibly when it comes to current
environmental challenges. We support environmentally friendly
processes and manufacture products that have a long service life.
We utilize advanced technologies in order to conserve energy and
water and leave the smallest environmental footprint possible.
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Solutions for Environmental Analysis
Processes
The laboratory workflow in environmental analysis includes different steps like sample grinding and
homogenization, extraction or digestion, evaporation or distillation and finally analysis.
KjelMaster
K-375
Distillation Units
K-350 / K-355
Step 5: Distillation / Analysis
Nitrogen determination by means of automated distillation
combined with an integrated titration unit.
Mixer
B-400
Step 1: Sample Grinding and Homogenization
Representative samples and high recovery rates due to efficient
sample preparation.
SPE-Module on the Syncore Analyst
Step 4: Solid Phase Extraction (SPE)
Solid phase extraction and concentration or evaporation
in one unit.
SpeedExtractor
E-914 / E-916
SpeedDigester
K-425 / K-436 / K-439
Step 2: Extraction or Digestion
High sample throughput and cost savings due to automated
and parallel extraction and digestion.
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Syncore Analyst
Multivapor
P-6 / P-12
Step 3: Concentration or Evaporation
Fast, parallel and gentle concentration to residual volumes
and a large assortment of different evaporation systems
for each specific need.
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Solutions for Environmental Analysis
Subsegments
BUCHI offers a wide range of instruments for sample preparation and analysis of environmental
subsegments. The table below demonstrates the interdependence of sample materials, analytes,
processes and products.
Grinding
Extraction
Digestion
B-400
E-914 / E-916
B-811
K-425 / K-436
K-439
K-432 / K-438
K-437
Concentration
Evaporation
SPE
Distillation / Analysis
Syncore Analyst
Rotavapor System
Multivapor P-6 / P-12
SPE-Module
K-350 / K-355
K-360
K-375 / K-376 / K-377
•
•
•
Soils / Brownfields / Sediments / Sewage sludge
Pesticides, PAH, PCB, PFC, TPH, flame retardants, dioxins/furans
Nitrogen
•
•
•
•
•
•
Water / Wastewater
•
Pesticides, PAH, PCB, TPH, flame retardants
•
•
Nitrogen
COD
•
•
•
•
•
Air-monitoring
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Digest Automat
K-432 / K-438
Syncore Analyst
Dioxins/furans and other POPs
Waste / Hazardous waste
PAH, PCB, phthalates, flame retardants
Heavy metals
•
•
Electronic waste (e-waste)
Flame retardants
Lead and cadmium
•
Food / Feed
Pesticides, PAH, PCB, PFC, flame retardants, dioxins/furans
Heavy metals
Mixer
B-400
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SpeedExtractor
E-914 / E-916
Extraction System
B-811
SpeedDigester
K-425 / K-436 / K-439
Digest System
K-437
•
•
Rotavapor R-215
System
Multivapor
P-6 / P-12
SPE-Module on the
Syncore Analyst
Distillation Units
K-350 / K-355
KjelFlex
K-360
KjelMaster
K-375
KjelSampler
K-376 / K-377
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Extraction Process
Pressurized Solvent Extraction
Solvent reservoir
HPLC pump
Pressure gauges and
position valves
Extraction cells
Heating block
Collection bottles
Waste bottle
SpeedExtractor E-914 / E-916
Process efficiency
The extraction process for determining different pollutants in solid or semi-solid samples is normally
time and solvent consuming, especially if the classical Soxhlet method is applied. Therefore, pressurized solvent extraction (PSE) has established itself in environmental analysis. At elevated pressure and temperature conditions, analytes diffuse from the matrix to the extracting solvent more
quickly due to higher analytes solubility and improved penetration of the sample matrix. Thanks
to the unique design of BUCHI’s SpeedExtractor, pressurized solvent extraction is taken to a new
dimension, especially in the field of trace and ultra-trace environmental analysis. The concept of the
SpeedExtractor allows to extract up to six samples not one after the other, but at the same time in
completely separated extraction cells.
The SpeedExtractor’s parallel format is ideally complemented by the parallel concentrator Syncore
Analyst or the parallel evaporator Multivapor. This paired system makes it possible to transfer collection vessels directly and therefore without any sample loss, and to concentrate then in parallel to
pre-defined residual volumes or to evaporate then to dryness.
Unmatched speed and low running costs
Due to elevated pressure and temperature as well as the parallel concept, extraction can be accomplished in a very short time, high sample throughput can be achieved and less solvent needs to
be used compared to the classical Soxhlet extraction and comparable techniques.
Flexibility
The SpeedExtractor is available in two instrument configurations. The E-916 accommodates six
extraction cells and the E-914 four extraction cells. The instruments differ in the size of the extraction cells:
∙∙E-916: cells with a volume of 10, 20 and 40 mL
∙∙E-914: cells with a volume of 40, 80 and 120 mL
Flexible process parameters: 30 – 200 °C and 50 – 150 bar
Application support
Ease of use
The extraction cells are sealed automatically. In addition to saving time, this also provides a high degree
of safety as it eliminates handling errors. Moreover, reproducibility is ensured.
Dedicated applications on extractions of e.g. PAH, PCB, phthalates, dioxins/furans, PFC, TPH and
flame retardants from soil, sediment, sludge and polymer waste are available as short notes at
www.buchi.com. A comprehensive application booklet provides a collection of reference applications and technical notes which are important for method development.
Example of use
Pesticides, PAH, PCB, PFC, flame retardants, dioxins/furans, TPH in solid matrices according
to the U.S. EPA method 3545A
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Download short notes of applications at:
www.buchi.com/extraction-applications
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Extraction Process
Automated Soxhlet Extraction
1st Step: Extraction
2nd Step: Rinsing
3 rd Step: Drying
Extraction System B-811
Reliability
Automated Soxhlet Extraction and subsequent analysis are a proven technique for the determination of pollutants like PCBs, BFRs etc. in semi-solid and solid matrices. A flexible solution for solidliquid extractions is the Extraction System B-811. This system makes it possible to operate in four
different modes without changing the glassware. Select from Soxhlet Standard, Soxhlet Warm, Hot
Extraction or Continuous Flow – each process is fully automated and controlled. In addition, it is
possible to use different solvents which allows for an ubiquitary application.
The Extraction System B-811 provides high recovery rates and best precision due to high automation and reproducible conditions. Contamination or “memory-effects” are prevented by the inert
­design of the extraction system. This system extracts 4 samples concurrently, quickly and efficiently
without the need of any supervision.
Fast process by automation
The amount of solvent used for extraction will be adjusted to the sample volume with an individual
adjustable optical sensor. This way, the throughput of samples can be increased which will help to
reduce costs. Additionally, the Extraction System B-811 delivers optimal recovery rates due to highend heating elements with optimized heating capacity.
Flexibility
Performance and accessories
In addition to having the possibility to select from 4 different methods, extractions with different solvents with boiling points of up to 150 °C can be performed. It is possible to concentrate the sample
after the extraction within the same unit. By using the product variation B-811 Large Sample Volume
(LSV), substances which only exist in trace quantities can be concentrated to a quantity exceeding the detection limit by using a large amount of sample. In the LSV model, main glass parts are
expanded by almost 60 %.
∙∙Beaker (Standard  LSV): 150 mL  250 mL
∙∙Glass sample tube (Standard  LSV): 130 mL  240 mL
A variety of methods can be processed without needing to rebuild the instrument due to five core
elements: lower- and upper-level heating, glass valves, optical sensors, and inert gas feed.
Example of use
Pesticides, PAH, PCB, dioxins/furans, PFC, TPH in solid matrices according to the U.S. EPA
method 3541. RoHS: PBDE and PBB from polymers (IEC 62321)
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Download short notes of applications at:
www.buchi.com/extraction-applications
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Digestion Process
IR-, and Block-Digestion
SpeedDigester K-425, K-436 and K-439
Block Digest System K-437 and Digest Automat K-432 / K-438
To determine the nitrogen content in accordance with the Kjeldahl method or the content of heavy
metals in environmental samples, it is necessary to digest the related samples under acidic conditions aided by a catalyst. The SpeedDigester K-439 is the first digester that combines the features of
IR (speed) and block (temperature control) digesters. The temperature control and an excellent thermal homogeneity ensure fast digestion, lead to reproducible results and prevent foaming.
Digestion systems based on a heated aluminum block are widely known and recommended in
many official methods. Having many years of experience in this sector, BUCHI offers three models
with two degrees of automation: K-437 manual and K-432 / K-438 fully automatic.
Speed, process efficiency and reliability
An increased sample throughput is achieved due to the considerably higher heat transfer capability
of IR heaters compared to contact heating sources. Moreover, the heat-up and cool-down periods
are considerably shortened. All SpeedDigester systems accept 300 mL and 500 mL sample tubes.
The larger sample tubes are especially useful for TKN determination since they render the use of
larger sample volumes possible. The SpeedDigester K-425 and K-436 are a cost effective solution
for fast and reliable digestions. The temperature of these instruments is set manually.
Pro-environmental
Process convenience, ease of use and automation
The Block Digesters K-437 and K-438 are instruments for the safe digestion of up to 20 samples
in 300 mL sample tubes simultaneously. The models K-432 and K-438 offer the highest degree of
automation. The programmable temperature profiles and the fully automatic lift make an unattended
digestion possible. A built-in clock makes it possible to start the digestion at a previously defined
time. The Digest Automat K-432 has been designed for digesting 12 samples of large volumes
(500 mL) which is ideal for TKN applications with low detection limits. The models K-437 and K-438
are available with an accessory for the determination of the Chemical Oxygen Demand (COD).
Pro-environmental
Harmful fumes are captured by the tight suction system and can be neutralized by the Scrubber K-415.
Harmful fumes are captured by the tight suction system and can be neutralized by the Scrubber K-415.
Example of use
Nitrogen in soil, sediments, sludge, water and wastewater, COD in water and phosphate
Example of use
TKN in water/wastewater, Aqua Regia Digestion for heavy metals
RoHS: Pb and Cd according to DIN EN 62321
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Download short notes of applications at:
www.buchi.com/kjeldahl-applications
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Evaporation Process
Concentration, Evaporation and SPE
Syncore Analyst
SPE-Module for Syncore Analyst
Concentrating large sample volumes to pre-defined residual volumes is often a cornerstone in
­environmental analysis. The parallel design and the evaporation under vacuum result in a fast and
gentle concentration. Pre-defined residual volumes are achieved by means of a locally cooled
appendix. It further provides high recovery rates due to the smooth sample processing and the
Flushback Module.
Conventional solid-phase extraction (SPE), an essential step in many analytical procedures, inclu­
des a number of laborious steps. With the help of this modified Syncore, all essential work-up steps
includ­ing the evaporation of the eluates, can be achieved without the need of any sample handling
between the indivi­dual steps.
Innovative design
The flexible design concept of the Syncore allows one unit to perform as a parallel evaporator
­(Polyvap) which can be instantly converted into a parallel concentrator (Analyst). The Syncore Analyst can concentrate different volumes (500 mL, 250 mL or 120 mL) to residual volumes of 0.3 mL,
1 mL or 3 mL. Three rack formats are available depending on the sample volumes (4, 6 or 12
positions).
Process efficiency, precision and high recovery rates
The sample vessels of the Analyst R-12 (120 mL) can be used as collection vials of the SpeedExtractor, making the sample transfer between the extraction step and the concentration process obsolete. High recovery rates, even for highly volatile substances, are achieved by continuous rinsing
of the glass walls with the help of the Flushback Module. The high process control leads to concentration without supervision, with good reproducibility and precision. The individual sealing system
and the separated vacuum channels guarantee to prevent cross-contamination.
Evaporation: Rotavapor and the parallel evaporator Multivapor
The Multivapor is a compact 6 or 12 position parallel vortex evaporator. The evaporation under vacuum
guarantees the smallest possible negative impact on the environment due to the high solvent recovery.
A flexible sealing system with a series of specific adapters covers a wide spectrum of sample tubes,
rendering the time consuming sample transfer unnecessary.
Further advantages:
∙∙Visible processing
∙∙Small footprint when combined with the Rotavapor
Example of use
Evaporation of different solvents to dryness in a broad range of common glassware
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Example of use
Download short notes of applications at:
Concentration of different solvents to residual volumes in environmental analysis
www.buchi.com/evaporation-applications
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Analysis Process
Distillation and Titration
Distillation Units K-350 / K-355 and KjelFlex K-360
The robust and versatile distillation systems are used for a wide range of environmental applications, such as Total Kjeldahl Nitrogen (TKN) determinations, Devarda, ammonia, phenols, volatile
acids, formaldehyde and cyanide. These distillation units meet the performance requirements and
safety needs of a modern laboratory. Routine environmental applications are facilitated by dedicated methods tailored to the operators’ needs. Moreover, the K-360 allows for fully automated processing with external titrators.
The KjelMaster K-375 meets the highest demands in usability, automation, user administration and
sophisticated data management. In combination with the KjelSampler K-376 or K-377 unprecedented throughput is achieved with a maximum degree of automation and flexibility.
Process efficiency
All distillation units are sturdy, compact and save lab space. The plastic housing is alkali-resistant
and all distillation units are equipped with a high performance steam generator. A protective door, a
sample tube and a service door sensor ensure safe operation.
The KjelMaster K-375 impresses with its self-evident user interface based on a large touch screen
and the ability to perform both potentiometric and colorimetric titration. The sample tube and receiving vessel are emptied automatically after the distillation and determination. The combination
of the K-375 with intergrated titrator and the KjelSampler K-376 or K-377 ensures a high sample
throughput, efficiency and time savings. Due to a unique sample transfer technique using steam
over pressure, the sampler system is compact and fits onto any laboratory bench. The protective
shield, a sample tube and a collision detection system guarantee a high safety level.
Example of use
Download short notes of applications at:
Determination of nitrogen in soil, sediment, sludge, water and wastewater
www.buchi.com/kjeldahl
Compact, flexible and safe operation
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KjelMaster K-375 and KjelSampler K-376 or K-377: All-in-one solution
with integrated titration and data management
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Support and customer service
From feasibility to preventive maintenance
You value an efficient and personalized service. Our network of professional application specialists
and service technicians as well as a large number of satisfied customers around the world give you
the assurance that you are working with the right partner.
Profit from workshops, trainings and seminars
We regularly offer practical seminars and workshops, often in cooperation with other partners in the field of sample preparation and
analysis. Customer contributions thereby underline how our solutions facilitate the daily routine. We also attend many local and international scientific and industrial congresses.
Find an overview of our activities at:
www.buchi.com/events
Improve your applications
A team of highly qualified specialists continuously improves our reference Application Notes. Ready-to-use detailed descriptions comprise of the entire process from milling to sample preparation and
analysis. Customized solutions are developed in close cooperation
whenever you face new requirements, changing circumstances or
new parameters to be determined.
Find hundreds of Application Notes at:
www.buchi.com/applications
Use your instrument most effectively
We help you to set your instrument properly into operation. We provide thorough Installation/Operation Qualification (IQ/OQ) services
to ensure compliance with FDA, GLP/GMP standards or GAMP
guidelines. Whether it is because of an initial installation, requalification or relocation, we provide professional compliance verification.
Find out more about our services:
www.buchi.com/service-support
Profit from our experience
Over 60 years of experience in application development, be it customized to dedicated customer needs or compliance with official regulations, has resulted in numerous practical tools and literature. Profit
from a myriad of information.
Discover our literature at:
www.buchi.com/literature
Minimize downtimes
Avoid products downtimes with preventative maintenance and tailored service packages. We offer a product warranty of two years
and guarantee ten years of spare parts availability.
Get in touch with us:
[email protected]
Apps ease your daily work
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Intense customer relationships result in a growing number of practical apps facilitating your daily routine. We are continuously developing new apps to find the optimal process parameters, or to interpret
experimental results correctly. The apps can be tested live on our
website.
Global Network
Experience our Kjeldahl apps online:
www.buchi.com/apps
Get in touch with us:
[email protected]
Our subsidiaries and qualified distribution partners ensure proximity where ever you are. Since we are familiar with your requirements, we use our experience and knowledge to provide first-rate
solutions.
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Solutions for Environmental Analysis
Discover the benefits of our different solutions
Quality in your hands
Find your BUCHI Contacts:
BÜCHI Labortechnik AG
CH – 9230 Flawil 1
T +41 71 394 63 63
F +41 71 394 65 65
[email protected]
www.buchi.com
BUCHI Italia s.r.l.
IT – 20090 Assago (MI)
T +39 02 824 50 11
F +39 02 57 51 28 55
[email protected]
www.buchi.it
BUCHI Hong Kong Ltd.
HK – Central
T +852 2389 2772
F +852 2389 2774
[email protected]
www.buchi.com.cn
Nihon BUCHI K.K.
JP – Tokyo 110-0008
T +81 3 3821 4777
F +81 3 3821 4555
[email protected]
www.nihon-buchi.jp
BUCHI Korea Inc
KR – Seoul 153-782
T +82 2 6718 7500
F +82 2 6718 7599
[email protected]
www.buchi.kr
BÜCHI Labortechnik GmbH
DE – 45127 Essen
Freecall 0800 414 0 414
T +49 201 747 490
F +49 201 237 082
[email protected]
www.buechigmbh.de
BÜCHI Labortechnik GmbH
Branch Office Benelux
NL – 3340 AC
Hendrik-Ido-Ambacht
T +31 78 684 94 29
F +31 78 684 94 30
[email protected]
www.buchi.nl
BUCHI Shanghai
CN – 200052 Shanghai
T +86 21 6280 3366
F +86 21 5230 8821
[email protected]
www.buchi.com.cn
BUCHI India Private Ltd.
IN – Mumbai 400 055
T+91 22 667 75400
F +91 22 667 18986
[email protected]
www.buchi.in
BUCHI Corporation
US – New Castle,
Delaware 19720
Toll Free: +1 877 692 8244
T +1 302 652 3000
F +1 302 652 8777
[email protected]
www.mybuchi.com
BUCHI Sarl
FR – 94656 Rungis Cedex
T +33 1 56 70 62 50
F +33 1 46 86 00 31
[email protected]
www.buchi.fr
BUCHI UK Ltd.
GB – Oldham OL9 9QL
T +44 161 633 1000
F +44 161 633 1007
[email protected]
www.buchi.co.uk
BUCHI (Thailand) Ltd.
TH – Bangkok 10600
T +66 2 862 08 51
F +66 2 862 08 54
[email protected]
www.buchi.co.th
PT. BUCHI Indonesia
ID – Tangerang 15321
T +62 21 537 62 16
F +62 21 537 62 17
[email protected]
www.buchi.co.id
BUCHI Russia/CIS
United Machinery AG
RU – 127787 Moscow
T +7 495 981 05 22
F +7 495 981 05 20
[email protected]
www.buchi.ru
We are represented by more than 100 distribution partners worldwide.
Find your local representative at: www.buchi.com
11592428 en 1301 B / Technical data are subject to change without notice / Quality Systems ISO 9001.
The English version is the original language version and serves as basis for all translations into other languages.