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Enhancing the Laboratory Quality Assurance using the MyKIMIA Proficiency Testing Provider (PTP) Food Scheme Data

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dc.contributor.authorLi Hui Lingen_US
dc.contributor.authorMohd Sukri Hassanen_US
dc.date.accessioned2024-05-27T14:35:15Z
dc.date.available2024-05-27T14:35:15Z
dc.date.issued2021
dc.date.submitted2022-1-28
dc.descriptionJQMA 17(2) 2021, 19-29en_US
dc.description.abstractAccuracy, reliability, defensibility, and timeliness are all aspects of laboratory quality. The outcomes must be error-free in order to produce high accuracy data. Valid methods and calibrated equipment are referred to as reliability. To dispute the laboratory results, all possible errors were identified and the measurement uncertainties were estimated. The certificate of analysis or report must be issued timely. Laboratories in Malaysia was referred to the ISO/IEC 17025 for accreditation purpose. There are three essential elements defined as the backbone of the laboratory quality system. Validate analytical methods, accreditation involving third part auditing and participation in proficiency testing (PT). For this study, PT data is used as a tool to assess laboratory quality management systems' competency. Even if their performance is satisfactory according to the PT provider's evaluation criteria, participants in PT can interpret their results to detect inaccuracies and possibilities for continuous improvement. One of the PT schemes from MyKIMIA Proficiency Testing Provider (PTP) selected for the case study, the overall percentage of satisfactory for the Food Analysis Scheme (FODAS) 1-20 Benzoic acid (BA) and Sorbic acid (SA) in cordial was in the range from 82% to 88%. Statistic performance evaluation was based on a calculation of Z score for Test 1, Test 2 and Test 4. The laboratories shall recalculate the Z score based on the PTP assigned value and fit for purpose standard deviation proficiency assessment (SDPA). Zeta score can be calculated to check the plausibility of the laboratory's measurement uncertainty estimate. The outlier data received that cause the poor performance include human errors, random errors, and systematic errors. Investigation on the errors is consistently based on four main factors: manpower, method, material, and machinery (4M).en_US
dc.identifier.epage29
dc.identifier.issn2600-8602
dc.identifier.issue2
dc.identifier.other1632-26
dc.identifier.spage19
dc.identifier.urihttp://journalarticle.ukm.my/17935/1/Paper-3-Li-Hui-Ling.pdf
dc.identifier.urihttps://oarep.usim.edu.my/handle/123456789/3331
dc.identifier.volume17
dc.language.isoenen_US
dc.publisherUniversiti Kebangsaan Malaysiaen_US
dc.relation.ispartofJournal of Quality Measurement and Analysisen_US
dc.subjectquality assurance; proficiency testing; ISO 17025; Z scoreen_US
dc.titleEnhancing the Laboratory Quality Assurance using the MyKIMIA Proficiency Testing Provider (PTP) Food Scheme Dataen_US
dc.title.alternativeMeningkatkan Jaminan Kualiti Makmal dengan Menggunakan Data Ujian Kemahiran Skim Makanan MyKIMIA PTPen_US
dc.typeArticleen_US
dspace.entity.typePublication

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