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Clinical Chemistry and Laboratory Medicine (CCLM)

Published in Association with the European Federation of Clinical Chemistry and Laboratory Medicine (EFLM)

Editor-in-Chief: Plebani, Mario

Ed. by Gillery, Philippe / Lackner, Karl J. / Lippi, Giuseppe / Melichar, Bohuslav / Payne, Deborah A. / Schlattmann, Peter / Tate, Jillian R.

12 Issues per year


IMPACT FACTOR 2016: 3.432

CiteScore 2017: 2.34

SCImago Journal Rank (SJR) 2017: 1.114
Source Normalized Impact per Paper (SNIP) 2017: 1.188

Online
ISSN
1437-4331
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Volume 51, Issue 11

Issues

Influence of physical properties of cuvette surface on measurement of serum lipase

Lien Cattoir / Valerie Pede / An-Sofie Decavele / Marc L. De Buyzere / Marijn M. Speeckaert / David Seccombe / Veerle Boterberg / Peter Dubruel / Frank de Bisschop / Joris R. Delanghe
Published Online: 2013-07-10 | DOI: https://doi.org/10.1515/cclm-2013-0369

Abstract

Background: Despite striking similarities among colorimetric lipase assay recipes, marked intervendor differences are noted in the reported lipase values. In the present study, the effect of physical properties of the cuvette surface on measurement of serum lipase was investigated.

Methods: Lipase activity was measured concomitantly in cuvettes from three different analyzers: Vista (Siemens), Modular (Roche), and Synchron (Beckman Coulter). The surface/volume ratio of the cuvettes and the contact angle of the cuvette polymers were determined. The effects of various characteristics of serum (biochemical parameters, surface tension) were also examined.

Results: Serum lipase activities based on the colorimetric methylresorufin assay differed markedly according to the cuvettes used. More specifically, in the lower activity rate, marked differences were reported. The physical properties of the various cuvettes showed remarkable differences, especially in the contact angles. Other biochemical parameters (bilirubin, alkaline phosphatase, total cholesterol, high-density lipoprotein cholesterol, low-density lipoprotein cholesterol, and triglycerides) and serum surface tension did not affect the results.

Conclusions: Serum lipase activity is affected by the physical properties of the cuvette surface.

Keywords: colorimetric method; cuvette; lipase; serum

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About the article

Corresponding author: Joris R. Delanghe, Department of Clinical Chemistry, De Pintelaan 185, 9000 Gent, Belgium, Phone: +32-9-332-2956, Fax: +32-9-332-4985, E-mail:


Received: 2013-05-16

Accepted: 2013-06-13

Published Online: 2013-07-10

Published in Print: 2013-11-01


Citation Information: Clinical Chemistry and Laboratory Medicine, Volume 51, Issue 11, Pages 2109–2114, ISSN (Online) 1437-4331, ISSN (Print) 1434-6621, DOI: https://doi.org/10.1515/cclm-2013-0369.

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