PASTIC Dspace Repository

Intercomparison Exercises; A Requirement for Accurate and Precise Analytical Data

Show simple item record

dc.contributor.author NAILA SIDDIQUE
dc.contributor.author S. WAHEED
dc.date.accessioned 2023-10-05T04:36:55Z
dc.date.available 2023-10-05T04:36:55Z
dc.date.issued 2011-12-20
dc.identifier.citation Siddique, N., & Waheed, S. (2011). Intercomparison exercises; a requirement for accurate and precise analytical data. Journal of the Chemical Society of Pakistan, 33(6), 839. en_US
dc.identifier.issn 0253-5106
dc.identifier.uri http://142.54.178.187:9060/xmlui/handle/123456789/19787
dc.description.abstract External evaluation of laboratory results and procedures can be carried out by participation in intercomparison exercises. The results of the International Atomic Energy Agency - Marine Environmental Laboratory (IAEA-MEL), Monaco intercomparsion exercise IAEA-158, marine sediment are presented and discussed in this paper. Using four different irradiation protocols instrumental neutron activation analysis (INAA) was used to quantify Al, As, Br, Ce, Co, Cr, Cs, Eu, Fe, Hf, K, La, Lu, Mn, Na, Nd, Rb, Sb, Sc, Se, Sm, Ta, Tb, Th, V, Yb and Zn in this reference material (RM). IAEA-405 (Estuarine Sediment) and IAEA-SL1 (Lake Sediment) were used as compatible matrix RMs for quality assurance (QA) purposes. The Z-scores showed our results to be in very good agreement with the IAEA certified values. Furthermore the IAEA placed our laboratory in Group 1 for having ≥ 90% of the data with acceptable Z-scores. en_US
dc.description.sponsorship The chemical society of Pakistan is an approved society from the PSF. en_US
dc.language.iso en en_US
dc.publisher HEJ Research Institute of Chemistry, University of Karachi, Karachi. en_US
dc.title Intercomparison Exercises; A Requirement for Accurate and Precise Analytical Data en_US
dc.type Article en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

Search DSpace


Advanced Search

Browse

My Account