[HTML][HTML] … -tandem mass spectrometry assay to quantify plasma 24 (S)-hydroxycholesterol and 27-hydroxycholesterol: A new approach integrating the concept of ion …

D Rojas, S Benachenhou, A Laroui, AA Aden… - The Journal of Steroid …, 2023 - Elsevier
… Difference plots of the bias were up to 12.6% and 14.1% for … impact of high cholesterol
concentrations in generating our … calibration solutions, quality control, and plasma samples) is an …

[HTML][HTML] ICP-MS trace element analysis in serum and whole blood

N Laur, R Kinscherf, K Pomytkin, L Kaiser, O Knes… - PloS one, 2020 - journals.plos.org
… , as it stimulates fatty acid and cholesterol biosynthesis [9]. … , the percentage bias of the true
concentration (inaccuracy) … the method, we participated in an external quality assessment for …

[HTML][HTML] An LC/MS/MS method for analyzing the steroid metabolome with high accuracy and from small serum samples [S]

TF Yuan, J Le, ST Wang, Y Li - Journal of Lipid Research, 2020 - ASBMB
… in quality control samples were between 86.4% and 115.0%. There were limited biases (−10.7…
Steroid hormones are endogenous compounds that are synthesized from cholesterol by …

Omic-scale high-throughput quantitative LC–MS/MS approach for circulatory lipid phenotyping in clinical research

J Medina, R Borreggine, T Teav, L Gao, S Ji… - Analytical …, 2023 - ACS Publications
… normalization strategy to correct method-specific biases (eg, … samples and NIST reference
material as quality control (QC). … comprising cholesterol efflux and cholesterol absorption, …

Evaluation of the HealthID PSD microsampling device for the simultaneous determination of cholesterol, high-density lipoprotein, triglycerides, creatinine, and HbA1c …

G Linden, MF Charão, R Linden - Clinical Biochemistry, 2023 - Elsevier
… The aim of this study was to validate the HealthID PSD … The bias of the dried specimen
methods was calculated as the … preparation procedure for standards and quality control samples

Trueness assessment of HbA1c routine assays: are processed EQA materials up to the job?

V Delatour, N Clouet-Foraison, S Jaisson… - Clinical Chemistry and …, 2019 - degruyter.com
… commutable materials exist for cholesterol in serum [14], … study performed on 26 processed
quality control materials for … 1c study also confirm our findings that for some assays, bias

[PDF][PDF] Six Sigma Metrics: An Evolving Indicator of Quality Assurance for Clinical Biochemistry

DP PRADHAN, D PANDIT, S SAHOO… - … & Diagnostic Research, 2022 - academia.edu
… Six Sigma quality management methodology has attracted … 2] illustrated the calculated
Bias% and sigma matrices of each … and Triglyceride) and Cholesterol had both inaccuracy and …

Quality control

WG Miller, JH Nichols - Contemporary Practice in Clinical Chemistry, 2020 - Elsevier
… is sensitive to large systematic bias, the 2 2S component is sensitive to systematic bias, and
the R 4S … Matrix effects on proficiency testing materials: impact on accuracy of cholesterol

Enhancing the accuracy of measurement of small molecule organic biomarkers

TL Teo, KA Lippa, L Mackay, S Yong, Q Liu… - Analytical and …, 2019 - Springer
… nation’s quality control system for cholesterol measurement. By … of cholesterol esters may
have contributed to biases in the … for accurate diagnosis, treatment or dosage adjustments. …

Mendelian randomization

E Sanderson, MM Glymour, MV Holmes… - … Reviews Methods …, 2022 - nature.com
… We give examples of a range of studies in which MR has … Finally, we outline sources of bias
that may affect MR studies … expected owing to sampling error, then at least one is not valid for …