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Determination of trace elements in serum by dynamic reaction cell inductively coupled plasma mass spectrometry [An article from: Analytica Chimica Acta]
Book Details
PublisherElsevier
ISBN / ASINB000PDT8UU
ISBN-13978B000PDT8U4
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MarketplaceUnited States 🇺🇸
Description
This digital document is a journal article from Analytica Chimica Acta, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.
Description:
An inductively coupled plasma mass spectrometer (ICP-MS), equipped with a dynamic reaction cell (DRC) and coupled with a desolvating nebulizing system (Apex-ACM) to reduce the oxide formation, was used in the determination of Al, Co, Cr, Mn, Ni and Se in serum samples. The effect of the operating conditions of the DRC system was studied to get the best signal-to-background (S/B) ratio. The potentially interfering molecular ions at the masses m/z^2^7Al, ^5^9Co, ^5^2Cr, ^5^5Mn, ^6^0Ni and ^7^8Se, were significantly reduced in intensity by using NH"3 and H"2, as the reaction cell gases in the DRC, while a proper Dynamic Bandpass Tuning parameter q (RPq) value was optimized. The detection limits for ^2^7Al, ^5^9Co, ^5^2Cr, ^5^5Mn, ^6^0Ni and ^7^8Se, estimated with 3-@s method, resulted to be 0.14, 0.003, 0.002, 0.01, 0.01 and 1.8@mgL^-^1, respectively. This analytical method was developed on both a human serum certified reference material and a lyophilized animal serum produced and proposed in an intercomparison study. The results obtained for the reference samples agreed satisfactorily with the certified values. Precision (expressed as CV%) between sample replicates was better than 10% for elements determination, with the only exception of aluminium (14%).
Description:
An inductively coupled plasma mass spectrometer (ICP-MS), equipped with a dynamic reaction cell (DRC) and coupled with a desolvating nebulizing system (Apex-ACM) to reduce the oxide formation, was used in the determination of Al, Co, Cr, Mn, Ni and Se in serum samples. The effect of the operating conditions of the DRC system was studied to get the best signal-to-background (S/B) ratio. The potentially interfering molecular ions at the masses m/z^2^7Al, ^5^9Co, ^5^2Cr, ^5^5Mn, ^6^0Ni and ^7^8Se, were significantly reduced in intensity by using NH"3 and H"2, as the reaction cell gases in the DRC, while a proper Dynamic Bandpass Tuning parameter q (RPq) value was optimized. The detection limits for ^2^7Al, ^5^9Co, ^5^2Cr, ^5^5Mn, ^6^0Ni and ^7^8Se, estimated with 3-@s method, resulted to be 0.14, 0.003, 0.002, 0.01, 0.01 and 1.8@mgL^-^1, respectively. This analytical method was developed on both a human serum certified reference material and a lyophilized animal serum produced and proposed in an intercomparison study. The results obtained for the reference samples agreed satisfactorily with the certified values. Precision (expressed as CV%) between sample replicates was better than 10% for elements determination, with the only exception of aluminium (14%).
