Pei KL, Kinniburgh DW, Butlin L, Faris P, Lee D, Marshall DA, Oliver MC, Parker R, Powell JN, Railton P, Smith J. An ORS-ICP-MS method for monitoring trace levels of cobalt and chromium in whole blood samples from hip arthroplasty patients with metal-on-metal prostheses.
Clin Biochem 2012;
45:806-10. [PMID:
22484458 DOI:
10.1016/j.clinbiochem.2012.03.025]
[Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2011] [Revised: 03/14/2012] [Accepted: 03/21/2012] [Indexed: 11/27/2022]
Abstract
OBJECTIVE
To develop a rapid and reliable method, using an octopole reaction system (ORS) ICP-MS, capable of monitoring trace levels of Co and Cr in whole blood samples from hip arthroplasty patients with metal-on-metal prostheses.
DESIGN AND METHOD
Whole blood is diluted 10-fold with an alkaline diluent and analyzed using an Agilent 7500 CE ORS-ICP-MS.
RESULTS
Limit of quantification of 0.03 μg/L Co and 0.20 μg/L Cr in patient samples. <6% covariance obtained for quality control materials analyzed over 10 runs.
CONCLUSION
This method is capable of monitoring trace levels of Co and Cr in diluted whole blood samples with a vial to vial run time of approximately 2 min. Results are comparable to those obtained using high resolution (HR) ICP-MS with sample digestion.
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