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本文研究了气相反应纸上分光光度法的可行性,并用于水体中砷的测定,结果表明,方法的灵敏度较常用的Ag—DDC法提高9倍,测砷的最低检出浓度为0.78ppb。
The feasibility of spectrophotometry on gas-phase reaction paper was studied in this paper. The method was applied to the determination of arsenic in water. The results showed that the sensitivity of the method was 9 times higher than that of Ag-DDC and the lowest detection limit of arsenic was 0.78ppb.