Determination of Sulfide in Marine Sediments by Acidification Blowing-Flow Injection
Sulphide in Marine sediments was determined by acidizing and blowing apparatus combined with automatic flow injection analyzer.The detection limit,precision and accuracy of flow injection spectrophotometry were analyzed.The results showed that the linear range was 0.05～2.00 mg/L,the detection limit was 0.035 mg/kg,the upper limit was 40 mg/kg,the recoveries were 81.0％～104％,and the relative standard deviations were 1.5％～3.6％.The results show that the flow injection method has the characteristics of fast analysis speed,low detection limit,large measurement range and small reagent consumption,so it is suitable for the detection of large quantities of samples.
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