A sensitive method for atmospheric sulfur dioxide determination by reaction cell inductively coupled plasma mass spectrometer

A sensitive method for sulfur dioxide (SO2) determination was developed with a reaction cell inductively coupled plasma mass spectrometer (ICP-MS) by preconcentrating SO2 from gas samples in solutions. O2 flow rate was set at 0.7 mL min-1 for optimal S/N ratio at m/z 48 (32S16O+). Favorable conditions to prepare SO2 concentrated solutions, including sampling flow rate, the volume of concentrated solution, the number of perfluoroalkoxy alkane (PFA) bubble absorption bottles, and the composition of concentrated solution, were investigated using SO2 in nitrogen gas reference materials within the range of 5.00 parts per billion (ppb) to 1.00 parts per million (ppm). A limit of detection (LOD) of 0.11 ppb was achieved, corresponding to 100 L 5.00 ppb SO2 with a sampling flow rate of 0.5 L min-1. This method also showed favorable selectivity in the assay of atmospheric SO2 level, providing its promising further application in monitoring gaseous environmental pollutants.
, , # A sensitive method for atmospheric sulfur dioxide determination by a reaction cell inductively coupled plasma mass spectrometer

Dataset DOI: [10.5061/dryad.tb2rbp0dk](10.5061/dryad.tb2rbp0dk)

## Description of the data and file structure

This dataset contains the data required to replicate atmospheric sulfur dioxide determination by inductively coupled plasma mass spectrometer in collision cell technology mode. O2 flow rate on CCT mode was optimized to realize optimal S/N ratio at m/z 48 (32S16O+). 5 nmol mol-1-1.00 μmol mol-1 SO2 in nitrogen gas reference materials proved the feasibility of the method under different conditions to prepare SO2 concentrated solution samples such as sampling flow rate, the volume of concentrated solution, the number of PFA bubble absorption bottles, the composition of concentrated solution and so on. For the purpose of monitoring SO2 level in the ambient atmosphere, sulfur-containing gases and other co-existing air pollutants that may cause interfere...,