“Coupled with a multiple-point sampling device, SIFT-MS is an ideal tool for monitoring an area for dimethyl sulfate ”


Dr. Vaughan Langford

BSc(Hons), PhD


Director - Applications & Marketing

Vaughan joined Syft in 2002 after completing his PhD in Physical Chemistry at the University of Canterbury (1997) and post-doctoral fellowships at the Universities of Geneva, Western Australia, and Canterbury.

As manager of Syft’s contract laboratory, Vaughan has worked extensively with customers to understand their analysis needs and develop market-tested SIFT-MS solutions.

Vaughan has experience across all SIFT-MS application areas, but has particular expertise in environmental and food industry applications. He is an expert in SIFT-MS application and method development.

In addition to the technical aspects of his role, Vaughan leads Syft’s marketing efforts, including the extensive webinar and conference campaigns.

Dimethyl sulfate is a moderately volatile compound that is an important reagent in a range of industrial-scale syntheses.

Dimethyl sulfate is also extremely toxic. It is readily and selectively detected to sub-ppbv concentrations in air using both H3O+ and NO+ reagent ions. Rapid switching of these ions within milliseconds – only possible with SIFT-MS – serves to greatly reduce interferences that result in false positives with less selective technologies.

Coupled with a multiple-point sampling device, Selected Ion Flow Tube Mass Spectrometry (SIFT-MS) is an ideal tool for monitoring an area for dimethyl sulfate.  The results shown in the trace below demonstrate the rapid response of a Syft Technologies Voice200ultra SIFT-MS instrument when sampling a stream containing elevated levels of hazardous compound is selected on the Syft multi-port inlet (MPI).

SIFT-MS analysis showing the time response (< 5 seconds) from switching the sample stream to a sampling line that has a significant concentration of dimethyl sulfate

SIFT-MS analysis showing the time response (< 5 seconds) from switching the sample stream to a sampling line that has a significant concentration of dimethyl sulfate

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