Environmental Products & Reviews

Extremely accurate refractometer for gases and anaesthetic gas mixtures

The DX61 offers life science professionals convenience, performance and flexibility combining infinity corrected optics with innovative mechanical design and is particularly suited to most tissue culture applications. - Outstanding optical performance - Infinity optical system- Ergonomically optimised and compact design- Optional ISIS Expanded-Pupil eyepieces increase eye-reliefVision Biomed have developed the DX61 with the…

The only pycnometer with fully integrated temperature controlPycnomatic is the ultimate development for density measurement of solid materials available from Thermo. Based on the technique of gas displacement to measure real density of solid and powders, Pycnomatic delivers unrivalled fast and accurate results.Product DetailPycnomatic ATC is the first density analyzer featuring a built-in temperature control system. The manifo…

Speed, reliability and ease of use in physisorption and chemisorptionThe advanced automation, the analytical performance and the versatility of the Sorptomatic make it the ideal tool for reliable, fast and simple characterization of solids, powders or activated surfaces. The Sorptomatic, using the static volumetric gas adsorption method, can easily and precisely determine properties like the specific surface area and meso-micr…

The ideal companions for QC/QA laboratoriesQsurf is an ultra-fast surface area and total pore volume analyzers family based on the flow dynamic adsorption technique. It is available in four different configurations, single and multi point BET, with either one or three analytical ports. Despite the speed of analysis and the high throughput, Qsurf analyzers provide accurate determinations thanks to the sensitivity of its TCD det…

Catalysts characterization made easy, precise and unattended The fundamental properties of catalysts (metal surface area, dispersion, acid/base sites concentration and activation energy) can be determined with utmost precision and speed by the TPDRO 1100. The thermal analysis methods (TPD, TPR, TPO) and chemisorption in flow may be used for different objectives. The reaction or desorption profile may be used qualitatively to f…

The mercury porosimetry technique is one of the most useful methods to investigate the porous structure of solid samples in a quantitative way. It provides reliable information about pore size/volume distribution, particle size distribution, bulk (envelope) density and specific surface for most porous solids. The main highlights of the Pascal series porosimeters are exceptional speed of analysis and high resolution. The Pascal…

The mercury porosimetry technique is one of the most useful methods to investigate the porous structure of solid samples in a quantitative way. It provides reliable information about pore size/volume distribution, particle size distribution, bulk (envelope) density and specific surface for most porous solids. The main highlights of the Pascal series porosimeters are exceptional speed of analysis and high resolution. The Pascal…

The mercury porosimetry technique is one of the most useful methods to investigate the porous structure of solid samples in a quantitative way. It provides reliable information about pore size/volume distribution, particle size distribution, bulk (envelope) density and specific surface for most porous solids. The main highlights of the Pascal series porosimeters are exceptional speed of analysis and high resolution. The Pascal…

Pellet Paint® NF Co-Precipitant* is a non-fluorescent dye-labeled carrier compatible with fluorescent sequencing. It facilitates rapid removal of BigDye™ Terminators (PE Corp.) during the alcohol precipitation of cycle sequencing reaction products. Cycle sequencing reactions can be precipitated rapidly with centrifugation times of 10 minutes. The easily visualized carrier provides a simple confirmation that precipitation has o…

Two new additions to the SNAP CAP™ range. These caps are pre-cut to avoid any vacuum generation problems.

This competitively-priced, single-channel dissolved oxygen meter is easy to set up and use while providing reliable, accurate DO measurement for water analysis and general laboratory applications. The rugged meter displays DO concentration or percent DO Saturation and offers a full complement of GLP-related features.  It offers enhanced stability indicators, salinity correction and automatic barometric pressure compensation—…

This waterproof, battery-operated DO meter stands up to the most demanding water analysis applications and delivers over 2,000 hours of continuous operation.  Convenient Quick-Start Guide is located on the back of the meter to make the unit easy to operate in the field. The rugged meter displays DO concentration or percent DO Saturation and offers a full complement of GLP-related features. It offers enhanced stability indica…

This competitively-priced, dual function pH/ISE meter is easy to set up and use while providing reliable measurement of pH and ionic concentrations for quality control and general analysis applications. Automatic pH calibration or 1 to 5 point manual calibration for pH and direct ion measurement ensures accuracy even at extremes of concentration. The rugged meter offers a full complement of GLP-related features—including avail…

This waterproof, battery-operated pH/ISE meter stands up to the most demanding quality control and general analysis applications and delivers over 2,000 hours of continuous operation. Convenient Quick-Start Guide is located on the back of the meter to make the unit easy to operate in the field. The rugged meter provides reliable measurement of pH and ionic concentrations and offers a full complement of GLP-related features—inc…

This waterproof, battery-operated pH/DO meter stands up to the most demanding water analysis applications and delivers over 2,000 hours of continuous operation. Convenient Quick-Start Guide is located on the back of the meter to make the unit easy to operate in the field.  The rugged meter displays DO concentration or percent DO Saturation and offers a full complement of GLP-related features—including available 21 CFR Part 11…

Biochemical oxygen demand (BOD) determination is still one of the most important parameters in water resource management. It can be used to evaluate the impact of biodegradable substances in waters and waster water. With its OxiTop ® systems, WTW offers a unique, modular and mercury-free instrument system. It is not only suitable for BOD determination, but also for measuring biodegradability and deple-tion.The advantages of Ox…

Complete packages for 6 or 12 simultaneous measurementsMeasurement using OxiTop ® is based on pressure measurement in a closed system: microorganisms in the sample consume the oxy-gen and form CO 2 . This is absorbed by NaOH, creating a vacuum which can be read directly as a measured value in mg/l BOD.The used sample volume regulates the amount of oxygen available for a complete BOD. Measurement ranges of up to 4,000 mg/l can…

Complete package for 6 or 12 simultaneous measurements – For a larger number of samples and with simple sample measurement OxiTop ® Control is the logical further development of the successful OxiTop ® system using software-controlled functions and infrared interface to communicate with a handy controller, the OC 100. This system enables the simultaneous and grouped start, management, storage and tracking of 100 measuring head…

common featuresSimultaneous sample management with option of grouping up to 100 OxiTop ® -C measuring heads.Data call-up of one parallel sample with statistical evaluation and as individual data.Automatic calculation and graphical display of BOD value.Data transfer even through glass doors.Protocol and documentation of data via Achat OC commu-nication program in combination with a PCGLP and AQS with inspection intervals for ca…

Instead of the display and keys, the OxiTop ® -C measuring head has an infrared interface with which it communicates with Controller OC 100 or OC 110. By "e;pointing"e; the controller at an OxiTop ® -C measuring head it can be identified and started, data can be called up or deleted and sampling progress can be displayed.Each measuring head has its own identification number; this means that manual identification of samples is…

Stirrers IS 6 and IS 12 have been specially developed for BOD measurement with the OxiTop ® system. Software-controlled speed regulation prevents the magnetic stirrer bar from getting caught or wobbling. The speed is selected so that an optimal gas exchange with the sample takes place. The stirrer is maintenance-free and non-wearing as it contains no moving parts. The IS 6-Var model has been specially developed for use wit…

Determination of anaerobic degradation processes: biogas determinationAnaerobic degradation processes take place in the absence of oxygen. In order to be able to fill the gas space above the sample with inert gas the measuring bottle has a septum sealed nozzle. When anaerobic degradation has taken place the dissolved CO 2 can be driven off and then removed from the gas space by means of a CO 2 absorber. The resulting pressure…