56 SPECTROSCOPY
mercury cadmium telluride (MCT) detector. Te latter system provides improved sensitivity and measurement speed and is ideal for measuring numerous locations over a surface or in a field.
Te 4300 handheld FTIR is available with five interchangeable sample interfaces for handling the broadest range of applications. Each interface is equipped with radio frequency identification (RFID) sensors, enabling full integration with Agilent’s method-driven Microlab mobile software. Tese features, combined with simple touch-screen operation, enable users to quickly access the power of the 4300 with minimal training.
Te new FTIR option joins two existing portable spectrometer series offered by the company. Te first, the 4500 series, supports efforts associated with at site analysis of incoming materials and outgoing finished products in the chemical, food and polymer industries. Tey are also ideal for proactive maintenance programmes of high value equipment and machinery in construction and power production industries.
Second is the 4100 ExoScan, a one module, 6.5lb system that is equally at home in the lab or at site.
community, such as the opportunity to perform real-time measurements…”
“Te system is as versatile as it is rugged and features a choice of interchangeable sampling interfaces that make the ExoScan a highly useful hand-held mid-IR spectrometer. You can choose diffuse, grazing angle, specular reflection or spherical ATR sampling interfaces, all of which can be changed in seconds with no realignment necessary,” notes the company.
Showcased by Termo Fisher Scientific at Analytica 2014 in April, the Delta Ray portable isotope ratio infrared spectrometer is a new category of analyser for the continuous measurement of isotope ratio values from carbon dioxide in ambient air (Fig. 1). Te ability to transport the system into the field can enable scientists to continuously collect data, 24 hours per day, seven days per week. Scientists can measure short duration phenomena that may have previously been missed due to the low-frequency sample acquisition. By comparison, a lab
Compact spectrometer for FTIR B
ruker has launched a new compact research grade FTIR spectrometer, the TENSOR II, which replaces the existing TENSOR 27/37
model. The company says that the TENSOR II is the first R&D FTIR using a diode laser with a much longer hold time than HeNe-lasers included in conventional R&D FTIR instrumentation. The IR-source in the TENSOR II is electronically stabilised to accomplish much longer exposure times than before. Another innovation is the new electronic platform with expanded functionality which provides a further
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increase in stability for the TENSOR II against mechanical disturbances and vibrations. The performance of the TENSOR II is continuously
controlled: this is not limited to a permanent check of the involved components, but also includes periodically performed test measurements to verify the specification of the system. For regulated pharmaceutical laboratories, the
new spectrometer is prepared with fully-automated test routines for validation regarding operational qualification (OQ) and performance validation (PQ). Its software OPUS is compliant with 21 CFR p11,
and validation, according to the US, European and Japanese Pharmacopeia using integrated NIST traceable standards, is available for the instrument. The main industrial application of the TENSOR II is
material verification and quality control – particularly for advanced research and development applications. Many special sampling accessories can be applied
with the TENSOR II and the system can also be further extended by the FTIR microscope series HYPERION, the thermo gravimetric modules A588, the gas chromatograph series SCION-GC, or the micro plate reader HTS-XT.
transporting samples from the field might only be able to collect one or two samples per week. In addition to more data, the field- deployable system can reduce or eliminate costs for vials, flasks and transportation.
“Isotope ratio infrared spectroscopy brings a paradigm shift to isotope ratio analysis,” said HJ Jost, product manager for the Delta Ray system at Termo Fisher Scientific. “Te potential to expand our current isotope analysis portfolio into field deployable systems, and the excitement of customers once they see the power of continuous measurement at the source, drove our desire to make this technology broadly available.”
“A step forward in the surveillance of volcanoes is now possible,” said Andrea Rizzo, researcher studying Mount Etna for Istituto Nazionale di Geofisica e Vulcanologia, (INGV), Sezione di Palermo, Italy. “Laser spectroscopy for
“Laser spectroscopy for stable isotope analysis in the field opens new and exciting perspectives for the scientific
stable isotope analysis in the field opens new and exciting perspectives for the scientific community, such as the opportunity to perform real-time measurements of elemental and isotope composition of carbon dioxide in volcanic gases.”
INGV-Palermo performs geochemical monitoring of Mount Etna to evaluate volcanic activity with the goal of predicting eruptions.
Te organisation evaluated a prototype Delta Ray system in July and again in September 2013 at Mount Etna, from sea level to just under 9900 feet up the mountain. Carbon isotope data was captured from the atmosphere, fumaroles and crater plume. Te instrument stood up to the rigors of this harsh environment, and INGV- Palermo research group is now planning a long-term study in which the instrument will operate unattended on Mount Etna for a number of months. Te Delta Ray analyser uses laser- based mid-infrared spectroscopy to simultaneously measure C13 isotope and O18 isotope with a precision of better than 0.1 parts per thousand, in minutes. Te mid-infrared range produces absorption signals about 8000 times stronger than the near- infrared for superior performance and reduced need to clean the mirrors.
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