High-throughput water analysis.
Analysis of volatile compounds in water is greatly simplified by SIFT-MS. The soft chemical ionization is robust to water and enables moist samples to be analyzed directly. This contrasts with GC and GC/MS approaches, where rigorous drying needs to be undertaken after extraction or purging and trapping. Using SIFT-MS, low ppb concentrations (in water) of hydrophobic volatiles (such as BTEX and low molecular weight halocarbons) are readily detectable without drying.
Linear calibration of benzene, toluene, ethylbenzene, m-xylene, and chloroform from 2.5 to 1,000 ppb in water. Courtesy of Dr Mark Perkins, Element, UK
Water analysis benefits
Direct headspace analysis without drying
High-throughput automated analysis (>12 samples/hour)
High sensitivity and selectivity
Continuous monitoring option
Water and Soil resources
Routine Analysis 3: SIFT-MS Method Development and Validation
SIFT-MS Method Validation
High-Throughput Analysis of Volatile Compounds in Air, Water and Soil Using SIFT-MS
Rapid Analysis of BTEX in Water using Automated SIFT-MS
Selected ion flow tube mass spectrometry (SIFT-MS) combined with GERSTEL automation greatly simplifies analysis of benzene, toluene, ethylbenzene and the xylenes (BTEX) in water. This application note demonstrates the linearity, repeatability and sensitivity achievable with automated SIFT-MS. Automated static headspace (SH)-SIFT-MS provides sample throughputs at least three-fold higher than traditional purge-and-trap-gas chromatography methods.
Enhanced Environmental Monitoring 2: Laboratory Applications
Real-Time Speciation of Ethylbenzene from the Xylenes Using SIFT-MS
Direct mass spectrometry (DMS) techniques struggle to speciate ethylbenzene from the xylene isomers, yet increasingly regulators are imposing different emission and exposure limits for these compounds. This application note describes a significant breakthrough for DMS, because selected ion flow tube mass spectrometry (SIFT-MS) readily achieves direct, real-time speciation of the xylenes from ethylbenzene.
Rapid Analysis of Organochlorine Compounds in Water using Automated SIFT-MS
Combining the power of direct analysis using selected ion flow tube mass spectrometry (SIFTMS) and GERSTEL automation, headspace analysis of chlorinated volatile organic compounds (VOCs) in water is greatly simplified. This application note demonstrates the linearity and and repeatability achievable with automated SIFT-MS. The sample throughput achievable with SIFTMS is at least three-fold higher than traditional purge-and-trap gas chromatography methods.