Results 261 to 270 of about 1,059,592 (292)
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Ultra-Trace Real Time VOC Measurements by SIFT-MS for VIAQ
SAE International Journal of Engines, 2017<div class="section abstract"><div class="htmlview paragraph">Vehicle interior air quality (VIAQ) measurements are currently conducted using the offline techniques GC/MS and HPLC. To improve throughput, speed of analysis, and enable online measurement, specialized instruments are being developed.
Jennifer H. Zhu +6 more
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High‐Throughput Analysis of Fruit Ripening by SIFT‐MS
Lebensmittelchemie, 2021A. Ingendoh, M. Perkins, V. Langford
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Breath Collection Equipment for Clinical Applications with SIFT-MS Instruments
2006Real time detection of Volatile Organic Compounds (VOCs) using Selected Ion Flow Tube – Mass Spectrometry (SIFT-MS) provides a unique opportunity for research into breath testing for clinical diagnosis. However, before engaging in research into breath analytes as markers of disease, appropriate breath collection methods are required.
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Integrity of Storage Media for Clinical Applications with SIFT-MS Instruments
2006Tedlar™ bags are a promising medium for remote breath collection and later analysis using SIFT-MS for disease diagnosis. It is important to understand the changes in integrity of samples stored in Tedlar™ bags. However, there is little work into this problem completed to date, and thus little known about these issues.
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Modifying an Existing SIFT-MS Method (Procedure 7)
SIFT-MS, with its chromatography-free, soft chemical ionisation approach to the analysis of volatile compounds requires different procedures for modifying validated test methods compared to GC. This chapter provides procedures for modifying SIFT-MS methods involving addition or removal of analytes, modification to product ion selections, a change of ...openaire +1 more source
Assessing SIFT-MS Method Feasibility (Procedure 1)
The marked difference in the analytical approach of SIFT-MS compared with the conventional GC and LC techniques means that the feasibility of method transfer – or new method development – for SIFT-MS should be evaluated prior to experimental work. Drawing on principles discussed in Part 1 of this book, this chapter describes a procedure by which the ...openaire +1 more source
Validating SIFT-MS Analysis of Volatiles in Breath
Current Analytical Chemistry, 2013Malina Storer +3 more
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Preparing the Automated SIFT-MS Instrument for Analysis (Procedure 2)
Selected ion flow tube mass spectrometry (SIFT-MS) instruments have different operational procedures compared to conventional chromatographic instruments, since they are based on different principles. This chapter describes, in a general manner, how to prepare a SIFT-MS instrument for analysis, together with a coupled robotic autosampler. Additionally,openaire +1 more source
Advances in On-line Absolute Trace Gas Analysis by SIFT-MS
Current Analytical Chemistry, 2013Patrik Spanel, David Smith
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