Analytical Instrumentation DialPath Technology Enables Rapid Analysis of Liquids by FTIR Spectroscopy
A2 Technologies (USA) has announced its new integrated FTIR analyser designed for the rapid analysis of liquids by FTIR spectroscopy. Based on A2's widely used ML analyser, the high performing FTIR spectrometer that occupies just 8 square inches on a lab bench, the ML with DialPath Technology represents a completely new approach to the analysis of liquid samples.
The DialPath technology features a tumbler-like optical head that can be rotated into position to provide one of three, factory set, selectable sample pathlengths between 30 and 250 microns. To analyse a sample, a drop of the liquid is placed on a stationary infrared- transparent window mounted on the top surface of the analyser, and then a second window is rotated into position, thus sandwiching the sample between the two windows. This creates highly reproducible, fixed sample pathlength between the two windows. The DialPath technology offers the user their choice of three different pathlengths, which are specified when the system is ordered, affording a FTIR liquids analyser with exceptional versatility, ease of use and performance in multi-application environments. For lower concentration samples, simply dial in a longer pathlength window set; for samples that are more concentrated, use the shorter pathlength combination.
The DialPath Technology makes liquids analysis as easy to use as ATR. There is no reason to use traditional demountable liquid cells, which
can leak, require spacers, may fringe, are difficult to fill and clean, and are particularly difficult to use with more viscous samples. The DialPath-equipped ML readily accommodates samples with a wide range of viscosities. Cleaning the DialPath analyser is as simple as rotating the window away from the fixed window and wiping the liquid sample off both windows.
Mr. Graham Miller, President of A2 Technologies comments: "The ML with DialPath Technology represents the first breakthrough in liquids analysis by FTIR in a number of years. ATR has become a mainstay for FTIR analysis because of its ease of use and versatility and now this new technology makes longer pathlength liquids analysis just as easy. The ML with DialPath Technology will find great use among analysts who frequently measure liquid samples in industries as varied as petroleum, energy, chemical and food."
Reader Reply Card No 87
Product Portfolio of Tunable Laser Diodes for NIR Gas Analysis Extended
31
Vertilas GmbH (Germany) announces that the product line of laser diodes for sensing applications has now been extended with new wavelengths and packaging versions.
New products include lasers for 1280 nm, 1550 nm to 1590 nm and 1680 nm. Vertilas now offers a comprehensive product range from 1.27 µm to over 2.3 µm, enabling customers to build leading edge gas analysis equipment for a wide
variety of gases, such as HF, H2O, HCl, CH4, NH3, CO, CO2 and more. All laser products are available in various
packaging options, incl. TO-cans and fibre coupled optical sub-assemblies. These package types can be supplied with or without integrated thermo electric cooler (TEC) and thermistor.
Vertilas laser products are based on its unique Indium Phosphide (InP) Buried Tunnel Junction (BTJ) Vertical Cavity Surface Emitting (VCSEL) technology. This InP VCSEL technology allows a wider and faster tuning range than other available laser technologies. The circular beam shape of BTJ VCSELs enables an optimised optical system design. Furthermore, Vertilas’ BTJ VCSEL diodes feature high performance and very low power dissipation, making them ideal for both high end as well as compact and battery operated sensing equipment.
Reader Reply Card No 88 Reader Reply Card No 89
Annual Buyers Guide 2011
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