发明名称 |
Method for detecting hydrocarbons in soil |
摘要 |
The presence of hydrocarbons in soil is detected by immersing a soil sample in a water-miscible solvent capable of dissolving the hydrocarbons to extract hydrocarbons from the soil into the solvent. An aqueous developer is mixed into the solvent to produce a test mixture. The turbidity of the test mixture is observed to determine the presence of hydrocarbons in the soil. The aqueous developer may contain at least 0.5% salt, e.g., at least 1%, preferably 5% salt, and an emulsifier. Turbidity may be measured quantitatively by measuring light scattered at 90 DEG to a test light beam or by visual comparison to a reference scale.
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申请公布号 |
US5756357(A) |
申请公布日期 |
1998.05.26 |
申请号 |
US19950557562 |
申请日期 |
1995.11.14 |
申请人 |
DEXSIL CORPORATION |
发明人 |
WRIGHT, KEITH A.;WHEELDON, GEORGE A.;LYNN, THEODORE B. |
分类号 |
G01N1/34;G01N33/18;G01N33/24;(IPC1-7):G01N33/24;G01N33/28 |
主分类号 |
G01N1/34 |
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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