发明名称 |
Device for chloride ion removal prior to chemical oxygen demand analysis |
摘要 |
A method of pretreating aqueous chemical oxygen demand (COD) samples to remove the risk of potential chloride ion interference. The method comprises acidifying an aqueous COD test sample, and thereafter passing the acidified sample through a source of pentavalent bismuth (Bi5+) such as sodium bismuthate.
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申请公布号 |
US5932174(A) |
申请公布日期 |
1999.08.03 |
申请号 |
US19970866466 |
申请日期 |
1997.05.30 |
申请人 |
HACH COMPANY |
发明人 |
BRAYTON, SCOTT VANCE;MILLER, DONALD GENE |
分类号 |
B01L3/00;G01N1/34;G01N33/18;(IPC1-7):G01N33/18 |
主分类号 |
B01L3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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