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为建立一简便快速的测定水中银的方法，采用在线连续流动富集－火焰原子吸收法对地表水中的银进行了测定。结果发现水中痕量银可用在线连续流动下被内充活性炭颗粒的富集柱吸附，吸附银可为稀硫代硫酸钠溶液洗脱，结合火焰原子吸收法可对低至μｇ／Ｌ水平的银实现精密测定。该法对水样１０次平行测定的相对标准差为６．９％，加标回收率为９３．２％～１０５％。如取２５ｍｌ样品分析，采样频率为７～８份／小时。
In order to establish a simple and rapid method for the determination of silver in water, the silver in surface water was determined by on-line continuous flow enrichment-flame atomic absorption spectrometry. The results showed that the trace silver in water could be adsorbed on the enrichment column filled with activated carbon particles by a continuous flow line, and the adsorbed silver could be eluted by dilute sodium thiosulfate solution. Flame atomic absorption spectrometry Achieve precise measurement. The relative standard deviation of the method for 10 parallel determinations of water samples was 6.9%, and the recoveries were 93.2% -105%. Take 25ml sample analysis, the sampling frequency of 7 to 8 copies / hour.