Quantitative Analysis of Environmental Air Contaminants Using APCI-MS/MS in Mobile Laboratories

Instrument Type: Unspecified

There are many potential hazards in our environment. Chemical emissions, accidental chemical spills and fires are of particular concern. A real-time analytical atmospheric pressure chemical ionization-tandem mass spectrometry (APCI-MS/MS) method for the quantitative analysis of air contaminants has been developed using a customized, direct-sampling APCI device coupled with a Thermo Scientific TSQ series triple stage quadrupole mass spectrometer.

AN1107: Determination of Anions and Carboxylic Acids in Urban Fine Particles (PM2.5)

Instrument Type: IC

Ionic forms of air pollutants are analyzed here using anion-exchange chromatography and suppressed conductivity. The gas sample included particles < 2.5 um (PM2.5) was collected using ambient ion monitoring and then dissolved in deionized water. The dissolved inorganic anions and organic acids were separated on a 4 mm i.d. IonPac AS11-HC column and detected by suppressed conductivity. This method provided analysis of more ionic contaminants than standard methods (EPA Method 26A) and ASTM D5085-02). An ICS-6000 can be used for this application.