DETERMINATION OF METALS IN OIL USING TOTAL REFLECTION X-RAY-FLUORESCENCE SPECTROMETRY

被引：24

作者：

BILBREY, DB ^{[1
]}

LELAND, DJ ^{[1
]}

LEYDEN, DE ^{[1
]}

WOBRAUSCHEK, P ^{[1
]}

AIGINGER, H ^{[1
]}

机构：

[1] OSTERREICH UNIV,ATOMINST,A-1020 VIENNA,AUSTRIA

来源：

X-RAY SPECTROMETRY | 1987年 / 16卷 / 04期

关键词：

D O I：

10.1002/xrs.1300160405

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Oil was chosen as a new sampl type for total reflection XRF. A thin‐film sample procedure is described which requires minimal sample preparation. This involves first bringing the oil into solution with a volatile solvent, then pipetting microliter amounts on to the reflector substrate followed by evaporation of the solvent. The linear dynamic range was found to extend to at least 5000 ppm. Detection limit measurements show that minute sample quantities are necessary for optimal detection limits of nanogram amounts. A maximum sample loading is required for the best detection limits in ppm. Using an Mo or Cu X‐ray tube, limits were found to be a few ppm or sub‐nanogram amounts. The spectrometer was calibrated by an internal standardization method and the results of determinations on sample solutions were typically within 10% relative accuracy. Copyright © 1987 John Wiley & Sons, Ltd.

引用

页码：161 / 165

页数：5

共 13 条

[1] DETERMINATION OF SULFUR AND HEAVY-METALS IN CRUDE-OIL AND PETROLEUM-PRODUCTS BY ENERGY-DISPERSIVE X-RAY-FLUORESCENCE SPECTROMETRY AND FUNDAMENTAL PARAMETER APPROACH [J].