TL;DRAbstract
[Objective] To develop a method for the determination of HF, HCl, H3PO4 and H2SO4 in the air of workplace simultaneously. [Methods] A mixed solution of Na2CO3 and NaHCO3 were used as eluent and absorbing solution for the air sample. The samples were collected with multi-hole absorbing tubes, then separated in column after filtering and detected with conductivity detector, qualitatively controlled by elution time and quantitatively controlled by peak height or peak area. [Results] The efficiency of samples collecting was ＞95%, the relative standard deviation (RSD) was 1.9%~5.6% and the rate of recovery was 95.1%~102.3%. There was no significant difference between this method and chemical method. [Conclusion] This method is simple, sensitive and precise. It is adapt to collecting and detecting simultaneously for HF, HCl, H3PO4 and H2SO4 in workplace air.
Chat with Paper
AI Agents for this Paper
[Objective] To develop a method for the determination of HF, HCl, H3PO4 and H2SO4 in the air of workplace simultaneously. [Methods] A mixed solution of Na2CO3 and NaHCO3 were used as eluent and absorbing solution for the air sample. The samples were collected with multi-hole absorbing tubes, then separated in column after filtering and detected with conductivity detector, qualitatively controlled by elution time and quantitatively controlled by peak height or peak area. [Results] The efficiency of samples collecting was ＞95%, the relative standard deviation (RSD) was 1.9%~5.6% and the rate of recovery was 95.1%~102.3%. There was no significant difference between this method and chemical method. [Conclusion] This method is simple, sensitive and precise. It is adapt to collecting and detecting simultaneously for HF, HCl, H3PO4 and H2SO4 in workplace air.
Keywords
Chat
Click to start Chat