DOI: 10.5061/dryad.tb2rbp0dk
title: A sensitive method for atmospheric sulfur dioxide determination by reaction cell inductively coupled plasma mass spectrometer

description: 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.
description: # 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 interference were also evaluated. The assay of atmospheric levels
 was a proof to validate the analytical performance of the proposed
 strategy on SO2 quantification with ICP-MS in a practical application. ###
 Files and variables #### File: Optimization_of_O2_flow_rate.zip
 **Description:** These files contain real-time response videos of the
 instrument when optimizing the oxygen flow rate from 0.2 mL min-1 to 1.0
 mL min-1 on the signal intensity of 32S16O+ from a 100 μg L-1 S standard
 solution and background. #### File: calibration_curve.xls;
 calibration_curve.csv **Description:** These files contain data of a
 calibration curve derived from 0.0 μg L-1, 10 μg L-1, 20 μg L-1, 50 μg
 L-1, 100 μg L-1, 200 μg L-1, 500 μg L-1 S standard solutions. #### File:
 Dependence_of_sampling_flow_rate.xls; Dependence_of_sampling_flow_rate.csv
 **Description:** These files contain data on the dependence of sampling
 flow rate on the mass concentration of sulfur in the concentrated solution
 sample and absorption efficiency from 0.3 L min-1 to 0.9 L min-1. ####
 File: Dependence_of_the_concentrated_solution.zip;
 Dependence_of_the_concentrated_solution_(CSV).zip **Description:** These
 files contain data on the dependence of the volume of concentrated
 solution on the mass concentration of sulfur in the concentrated solution
 sample and absorption efficiency from 10 mL to 70 mL. #### File:
 The_effects_of_potential_interferences.xls;
 The_effects_of_potential_interferences.csv **Description:** These files
 contain data on the effects of potential interference encountered on
 SO2 determination. #### File:
 Dependence_of_volume_of_concentrated_solution.zip;
 Dependence_of_volume_of_concentrated_solution_(CSV).zip
 **Description:** These files contain data on the dependence of the
 concentrated solution and SO2 sources on the mass concentration of sulfur
 in the concentrated solution sample and absorption efficiency. ##
 Code/software Any version of Microsoft Office can be used to view the data
 (The files uploaded as formatted .xls and unformatted CSV files). All
 players that support the MP4 format can view the videos uploaded. ##
 Access information Other publicly accessible locations of the data: * None
 Data was derived from the following sources: * None