【摘要】 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。更多还原

【Abstract】 An attempt is made to invest igate the feasibility of a spectro-metric determination of a gaseous reaction on paper and of the application of the method is arsenic detection. Resulte obtained indicate an increased sensitivity by a factor of 10 compared with the conventional Ag-DDC procedure. The minimum deterctable concontration is about 0,8 ppb.更多还原