Sensitive method for measurement of atmospheric hydrogen sulfide

Shipboard measurements of atmospheric dimethylsulfide and hydrogen sulfide in the Caribbean and Gulf of Mexico

“…Hydrogen sulfide was collected and analysed using a method similar to that of Natusch et al (1972). An air stream was drawn through a silver nitrate impregnated (Whatman 41) filter in a 47 mm Teflon PFA filter holder.…”

Validation of ppb/ppt Sulfur Gas Standards by Independent Analytical Methods

“…These calculated amounts of sulfide collected on the filters were compared to the corresponding amounts of sulfide measured by the FMA fluorescence quench method. 16 For example, calculated amounts of 19 ng S and 40 ng S gave 21 ng S and 36 ng S respectively, when the two filters were analyzed for sulfide by the FMA fluorescence quench method. A means comparison test on these two data sets (i.e., calculated and experimental values) yielded D = 1.00, s D = 4.24, and t = 0.33.…”

“…Calibration of this fluorimetric technique was performed by determining the relation between the percent fluorescent quench of FMA and fresh standards of aqueous sulfide solutions prepared from Na2S-9H2O. The basis for this method has been described by Natusch et al, 16 while Jaeschke et al 11 and Farwell et al 18 have described similar experimental equipment to that used in this work.…”

Performance Characterization and Optimization of the AgNO3-Filter/FMA Fluorimetric Method for Atmospheric H2S Measurements

“…Because of the method's linear dynamic range, sufficient air should be sampled to achieve filter loadings of 15 to 35 ng S/filter. A quality control method based on fluoresceln mercuric acetate (FMA) is presented that ensures data quality while reducing the otherwise frequent need for fluorimetric calibration.A sensitive method for measuring low and sub-parts-perbillion (ppb V/V) concentrations of atmospheric hydrogen sulfide has been described by Natusch et al 1 and modified by Jaeschke et al 2 for automated field sampling. The method employs the collection of H2S on a AgNCVimpregnated filter.…”

“…A sensitive method for measuring low and sub-parts-perbillion (ppb V/V) concentrations of atmospheric hydrogen sulfide has been described by Natusch et al 1 and modified by Jaeschke et al 2 for automated field sampling. The method employs the collection of H2S on a AgNCVimpregnated filter.…”