Fully automated acid hydrolysis in 90 minutes. Total fat determination according to Weibull-Stoldt - validated for continuous operation. Time-consuming fat determination according to Weibull-Stoldt is a standard quality assurance procedure in the food industry. Reduce the hands-on time of your lab staff by up to 80% and get to know the world's only fully automated hydrolysis system for standard fat determination.

• Fully automated - reduces the workload of lab staff and increases reproducibility
• Safe - the closed system protects you from contact with hazardous acids and fumes
• Efficient - process up to 6 samples in 90 minutes
• Hydrolysis unit HYDROTHERM 6 place, complete system includes:
• Tubing set complete with inlet and outlet tubes
• CD-ROM with HYDROTHERM Manager
• Package with folded filters, 100 pcs
• Fill level sensors for reagent and sample waste tanks

• Particularly good tightness due to robust ground joint
• Robust quartz glass with extra-thick glass walls for a long service life of the digestion tubes
• Wide range of glass variants tailored to the requirements of your application
• L 300mm
• Ø 42mm

Gerhardt pH Buffer Solution pH 7 250mL

Gerhardt pH Buffer Solution pH 4 250mL

Gerhardt Electrolyte Solution KCl 3M 250mL

Stably compressed tablets for immediate use

Without weighing

Long shelf life

Practical packaging for easy removal

No pulverization, no loss

Effective prevention of foaming

Easy dosing thanks to tablet form

0.97g Na₂SO₄ + 0.03g silicone antifoam

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application
• L 300mm x AØ 26mm

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application
• 100mL with calibration mark at 100mL + 75mL
• L 300mm x AØ 26mm

Gerhardt Acid Hydrolysis Weighing Paper for use with HYDROTHERM

Gerhardt Boiling Stones Type A 250g

• Nitrogen-free paper
• Easy to remove and shape: makes sample weighing and transfer easier
• Residue-free decomposition during oxidation

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application
• 250mL with necking
• L 300mm x AØ 42mm

Gerhardt Glass Extraction Thimble with Slots 33 x 94mm

Gerhardt Upgrade Kit for Alcohol Determination for VAPODEST Models 10s-45s/200-450

• Kjeldahl flask
• Capacity: 250mL
• With enlarged neck for VAPODEST
• Robust quartz glass with extra thick glass walls for a long service life of the digestion tubes

Gerhardt Cellulose Extraction Thimbles 33 x 80mm

Weighing paper for HYDROTHERM

• 10 x 13cm
• Pad with 250 sheets
• Practical block for tearing single papers off
• Easy to shape after sample weight
• Almost residue-free decomposition
• Free of grease
• Protects the sample from burning and ensures a slow decomposition for a controlled reaction

Standardisation of filtration through defined mesh size

Large surface area for effective detergent flow without clogging

Residue-free incineration

Sample is permanently rinsed

Nitrogen-free, making it suitable for determining the content of cell wall-bound proteins (e.g. NDLXP), for protein determination using Kjeldahl in the context of fibre determination and for chitin analysis in insect-based animal feeds

Adapted pore size tailored to the demands of CF, NDF, ADF or ADL determination

• For highly foaming sample matrices and high sample volumes
• Jumbo sample tube for direct distillation
• Length 300mm
• Ø 90mm

• Kjeldahl flask
• Capacity: 50mL
• With enlarged neck for VAPODEST
• Robust quartz glass with extra thick glass walls for a long service life of the digestion tubes

Standardisation of filtration through defined mesh size

Large surface area for effective detergent flow without clogging

Residue-free incineration

Sample is permanently rinsed

Nitrogen-free, making it suitable for determining the content of cell wall-bound proteins (e.g. NDLXP), for protein determination using Kjeldahl in the context of fibre determination and for chitin analysis in insect-based animal feeds

Adapted pore size tailored to the demands of CF, NDF, ADF or ADL determination

Standardisation of filtration through defined mesh size

Large surface area for effective detergent flow without clogging

Residue-free incineration

Sample is permanently rinsed

Nitrogen-free, making it suitable for determining the content of cell wall-bound proteins (e.g. NDLXP), for protein determination using Kjeldahl in the context of fibre determination and for chitin analysis in insect-based animal feeds

Adapted pore size tailored to the demands of CF, NDF, ADF or ADL determination

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application
• For use with TT440
• L 300mm
• Ø 54mm

Gerhardt SOXTHERM Extraction Beaker Macro 54mm x 130mm

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application
• For use with TT480
• L 300mm
• Ø 70mm

Glass spacer for FibreBags, to open and fix the bags.

Optimal rinsing of the sample

Optimised sample weight in the FibreBags

Long life time due to robust glass

Gerhardt pH Combined Electrode in KCl for VAPODEST

• Particularly good sealing due to robust ground joint
• Robust quartz glass with extra thick glass walls for a long life time of digestion tubes
• Versatile glass variations tailored to the demands of your application
• L 300mm x AØ 26mm

• Stably pressed tablets for immediate use - without weighing
• Long life time
• Convenient packaging for easy removal
• No pulverisation, no waste
• Visual inspection of the alkalinisation of the sample through colour change
• Wide range of KJELCAT variants, tailored to your application
• 3.5g K₂SO₄ + 0.4g CuS0₄.5H₂O

Gerhardt Antifoam Tablets 0.97g Na2SO4 + 0.03g Silicone Antifoam

• Stably pressed tablets for immediate use - without weighing
• Long life time
• Convenient packaging for easy removal
• No pulverisation, no waste
• Visual inspection of the alkalinisation of the sample through colour change
• Wide range of KJELCAT variants, tailored to your application
• 3.5g K₂SO₄ + 0.0035g Se

• Stably pressed tablets for immediate use - without weighing
• Long life time
• Convenient packaging for easy removal
• No pulverisation, no waste
• Visual inspection of the alkalinisation of the sample through colour change
• Wide range of KJELCAT variants, tailored to your application
• 5g K₂SO₄ + 0.15g CuS0₄.5H₂O + 0.15g TiO₂

• Stably pressed tablets for immediate use - without weighing
• Long life time
• Convenient packaging for easy removal
• No pulverisation, no waste
• Visual inspection of the alkalinisation of the sample through colour change
• Wide rang e of KJELCAT variants, tailored to your application
• 5g K2SO₄+ 0.1g CuSO₄.5H₂O

• Stably pressed tablets for immediate use - without weighing
• Long life time
• Convenient packaging for easy removal
• No pulverisation, no waste
• Visual inspection of the alkalinisation of the sample through colour change
• Wide range of KJELCAT variants, tailored to your application
• 5g K₂SO₄ + 0.5g CuS0₄.5H₂0

• Kjeldahl flask
• Capacity: 750mL
• With enlarged neck for VAPODEST
• Robust quartz glass with extra thick glass walls for a long service life of the digestion tubes

Height-adjustable filter insert. 6 funnels with plate for FibreBag spacer.

The benefits of the innovative FibreBag technology are not only available with the automatic FIBRETHERM. For laboratories with a low or fluctuating sample volume, we offer another system for fibre analysis: the manual FibreBag system. This compact system is available withsix heaters and is ideal for processing from 1 to 36 samples simultaneously. Suitable for crude fibre determination as well as for the determination of ADF, NDF and ADL fractions in feed.

Manual system for the simultaneous handling of up to 6 samples, includes:

1 x single heater 450W, 230VAC

1 x beaker 1000mL

1 x carousel 6 place including handle

6 x glass spacers

1 x support stand with ring

1 x condenser made of glass with tubes

Dimensions, w x d x h: 250 x 230 x 600mm

Manual fibre analysis made easy: The manual FibreBag systems make the determination of the crude fibre content very simple. The samples are placed in the sample carousel with the FibreBag and then set on the heater in a digestion vessel. Now you can perform the boiling and filtration process for 6 samples per digestion vessel. This creates space in the laboratory and reduces your costs for chemicals and energy many times over!

Advantage FibreBag: Just as with the automatic FIBRETHERM, the innovative FibreBags are also used in the manual system for fibre determination. The high-precision special fabric of the FibreBags not only enables reliable and reproducible results, but also higher sample weights. In fact, handling during the entire analytical process is much more convenient than with other standard solutions on the market.

SOXTHERM-Manager software for control and monitoring of a maximum of 4 SOXTHERM units. Includes CD with controlling software, GerBus adapter and software key. PC/laptop and printer are not included in scope of delivery. System requirements: Windows XP, Windows 7, WIndows 10, Windows 11, 1 x USB-interface or 1 x serial interface.

MULTISTAT Control Unit required for SOXTHERM. For control and monitoring of a maximum of 4 SOXTHERM units.

VACUSOG suction washer for the separation and neutralisation of inorganic acid fumes created during Kjeldahl digestion. Say goodbye to corrosive, toxic fumes. With integrated vacuum pump - no water supply is necessary. Optimum extraction at exceptionally low operating costs. Continuously adjustable suction power. No matter what the scale of your Kjeldahl digestion is, you can connect VACUSOG directly to any C. Gerhardt digestion unit, from the conventional apparatus to the KJELDATHERM block digestion unit.

Digest at twice the speed with the infrared digestion unit TURBOTHERM. Sample preparation for Kjeldahl analysis can be time-consuming. Acid digestion using TURBOTHERM is different:

• Fast: digest up to 12 samples per hour, this saves 50% of the time needed for conventional block digestion
• Safe: thanks to direct and even heating, boiling distortion is no longer an issue, the heating power applied can be varied infinitely, and you can also digest strongly foaming, aqueous and large-volume samples without having to worry
• Flexible: optimised for, but not limited to, Kjeldahl acid digestion - sample preparation made easy!

Includes TURBOTHERM basic system, 12 x digestion tubes, insert rack for tubes, exhaust manifold with drip tray, 1.5m isoversinic tubing, and console

Steam distillation systems for Kjeldahl analysis. VAPODEST can determine more than just nitrogen. Whether you want to perform nitrogen analysis according to Kjeldahl or steam distillation of volatile acids, sulphur dioxide, TVB-N, ammonium, formaldehyde, phenol, alcohol, vicinal diketones or hydrogen cyanide, you will not want to miss VAPODEST anymore.

• Rapid: 4 minutes distillation time
• Safe: highest protection of user and work environment
• Economical: long-lasting with low operating costs
• Compliant: exceeds international standards such as EN/ISO, AOAC, DIN, EPA, ASTM, GAFTA

Two versions available:

• KJE2026: standard version complete with tubing set
• KJE2028: acid resistant version equipped with acid resistant pumps special for dosing of phosphoric acid max. 85% and hydrochloric acid max. 5%

Steam distillation systems for Kjeldahl analysis. VAPODEST can determine more than just nitrogen. Whether you want to perform nitrogen analysis according to Kjeldahl or steam distillation of volatile acids, sulphur dioxide, TVB-N, ammonium, formaldehyde, phenol, alcohol, vicinal diketones or hydrogen cyanide, you will not want to miss VAPODEST anymore.

• Rapid: 4 minutes distillation time
• Safe: highest protection of user and work environment
• Economical: long-lasting with low operating costs
• Compliant: exceeds international standards such as EN/ISO, AOAC, DIN, EPA, ASTM, GAFTA

Two versions available:

• KJE2026: standard version complete with tubing set
• KJE2028: acid resistant version equipped with acid resistant pumps special for dosing of phosphoric acid max. 85% and hydrochloric acid max. 5%

Kjeldahl block digestion for the high-throughput lab. KJELDATHERM - block digestion can be so simple and convenient. KJELDATHERM’s outstanding properties:

• Efficient: process 20 samples at a time, even in continuous operation.
• Flexible: adjust the acid amount flexibly to your type of sample and process even fatty and inhomogeneous samples without difficulties, highly foaming samples are kept in check by regulating the heating
• Safe: thanks to the removable control unit, you can operate KJELDATHERM easily from outside the danger zone
• Transparent: KJELDATHERM documents all the digestion parameters for you

Innovative fully automatic fibre analysis for fast and precise results. FIBRETHERM: Efficient analysis of up to 12 samples in simultaneously. This innovative fully automatic filtration process makes the determination of crude fibre, ADF, NDF and ADL fractions in feedstuff a breeze. The FibreBag technology used bypasses common problems with classic filtration using glass crucible and ensures better and more reliable analysis results. Thanks to the large filter bag and the high-precision special fabric, digestion and filtration are carried out in one step and the filtration conditions are standardised. The analysis of up to 12 samples simultaneously and the constant analysis conditions make the FibreBag technology not only more efficient, but also space-saving on the laboratory bench. Discover the advantages of FibreBag technology now and revolutionise your fibre analysis!

Solid-liquid extractions in 2h. Fully automated and 4x faster than the conventional Soxhlet method. Fat determination in food and feedstuffs has never been so easy. Whether you are performing fat determination or residue and environmental analysis, its efficiency and safety make the SOXTHERM rapid extraction system stand out.

Resource-saving: integrated solvent recovery saves you costs

Safe: stay relaxed even during unattended operation, thanks to plug-in limit temperature connectors and explosion-proof construction

Version Macro is equipped with extraction beakers macro with a liquid capacity of 50 - 150mL, suitable for standard sample quantities

Requires MULTISTAT Control Unit (EXT4022) and SOXTHERM Manager Software (EXT4024), which are not included and must be ordered separately

Fully automatic distillation and titration and evaluation according to Kjeldahl. VAPODEST 500 for precise Kjeldahl analyses in high-throughput labs. Specially developed for users in high-throughput laboratories, VAPODEST 500 performs Kjeldahl nitrogen determination as well as steam distillation of volatile substances. Efficiency, safety and conformity with standards are the features that matter most.

• Efficient: fully automated and process-optimised Kjeldahl analysis
• Robust: designed for high-throughput analyses and continuous operation
• Fully integrated: network-compatible data and process management