Comparison of Shake and Column Silica Gel Cleanup Methods for Groundwater Extracts to Be Analyzed for TPHd/DRO

Dawn A. Zemo; Karen A. Synowiec; Renae I. Magaw; Rachel E. Mohler

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Comparison of Shake and Column Silica Gel Cleanup Methods for Groundwater Extracts to Be Analyzed for TPHd/DRO

机译：用于TPHd / DRO的地下水提取物的摇床和色谱柱硅胶净化方法的比较

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Groundwater samples from petroleum release sites are frequently analyzed for bulk extractable total petroleum hydrocarbons (TPH) quantified as TPHd/DRO using EPA Method 8015B/C (GC-FID) or equivalent. Prior to the quantitative analysis, the groundwater samples are extracted with organic solvents and the extraction step is commonly performed following EPA Method 3510 with methylene chloride (DCM) or DCM mixtures with other solvents. The purpose of the TPHd/DRO analysis is to quantify the dissolved hydrocarbons in the groundwater sample. However, neither the extraction method, nor the quantification method (Method 8015), is specific to hydrocarbons (compounds containing only carbon and hydrogen [Hart 1991], and thus are nonpolar in molecular structure), and nonhydrocarbons (compounds containing oxygen, nitrogen, sulfur or other atoms in addition to carbon and hydrogen, and thus are polar in molecular structure) can be extracted from the sample and quantified as TPHd/DRO when these techniques are used.

机译：经常使用EPA方法8015B / C（GC-FID）或等效方法对石油释放场所的地下水样品中的大量可萃取总石油烃（TPH）定量化为TPHd / DRO进行分析。在进行定量分析之前，用有机溶剂提取地下水样品，提取步骤通常是按照EPA方法3510进行的，使用二氯甲烷（DCM）或DCM与其他溶剂的混合物进行。 TPHd / DRO分析的目的是量化地下水样品中的溶解烃。但是，提取方法和定量方法（方法8015）都不适用于碳氢化合物（仅包含碳和氢的化合物[Hart 1991]，因此在分子结构上是非极性的）和非碳氢化合物（包含氧，氮，当使用这些技术时，可以从样品中提取除碳和氢以外的硫或其他原子，因此在分子结构上是极性的）并定量化为TPHd / DRO。

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《Ground Water Monitoring & Remediation》 |2013年第4期|108-112|共5页
作者
Dawn A. Zemo; Karen A. Synowiec; Renae I. Magaw; Rachel E. Mohler;
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Zemo & Associates, Inc., 986 Wander Way, Incline Village, NV 89451, 775-831-6179;

CETC, 6001 Bollinger Canyon Road, San Ramon, CA 94583, 925-842-6103;

CETC, 6001 Bollinger Canyon Road, San Ramon, CA 94583, 925-842-1155;

CETC, 100 Chevron Way, Richmond, CA 94802, 510-242-4939;

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机译：“在生物降解性燃料释放场所，定量为TPHd / DRO的地下水中极性代谢产物混合物的性质和估计的人类毒性”
2. 'Nature and Estimated Human Toxicity of Polar Metabolite Mixtures in Groundwater Quantified as TPHd/DRO at Biodegrading Fuel Release Sites' [J] . D.A. Zemo, K.T. OReilly, R.E. Mohler, Ground Water Monitoring & Remediation . 2014,第2期

机译：“在生物降解性燃料释放场所，定量为TPHd / DRO的地下水中极性代谢产物混合物的性质和估计的人类毒性”
3. Nature and Estimated Human Toxicity of Polar Metabolite Mixtures in Groundwater Quantified as TPHd/DRO at Biodegrading Fuel Release Sites [J] . Dawn A. Zemo, Kirk T. OReilly, Rachel E. Mohler, Ground Water Monitoring & Remediation . 2013,第4期

机译：地下水中极性代谢物混合物的性质和估计的人类毒性，在生物降解性燃料释放场所量化为TPHd / DRO
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Comparison of Shake and Column Silica Gel Cleanup Methods for Groundwater Extracts to Be Analyzed for TPHd/DRO

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