Search Results - "Cheow, Pui‐Sze"

Determination of melamine in milk powder using gas chromatography–high‐resolution isotope dilution mass spectrometry by Koh, Guiwan, Chia, Rosalind S. C, Lin, Qi, Cheow, Pui‐Sze, Teo, Tang‐Lin, Lee, Tong‐Kooi

“…A GC–high‐resolution isotope dilution MS (IDMS) method for the quantification of melamine in milk powder is described. The developed technique is compared to…”
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Grafting of nanoporous alumina membranes and films with organic acids by Cheow, Pui-Sze, Liu, Lingyan, Toh, Chee-Seng

“…In this study, direct surface grafting of nanoporous alumina membranes and glass‐supported alumina films was carried out with three different fluorinated…”
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Determination of purity values of amino acid reference materials by mass balance method: an approach to the quantification of related structure impurities by Liu, Hong, Cheow, Pui Sze, Yong, Sharon, Chen, Yizhao, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi

“…A systematic procedure for the determination of purity values of amino acid reference materials was developed by use of mass balance method where four…”
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Interlaboratory comparison of the intensity of drinking water odor and taste by two-way ordinal analysis of variation without replication by Gadrich, Tamar, Kuselman, Ilya, Pennecchi, Francesca R., Hibbert, D. Brynn, Semenova, Anastasia A., Cheow, Pui Sze, Naidenko, Vladimir N.

“…A case study of ordinal data from human organoleptic examination (sensory analysis) of drinking water obtained in an interlaboratory comparison of 49…”
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Ordinal Analysis of Variation of Sensory Responses in Combination with Multinomial Ordered Logistic Regression vs. Chemical Composition: A Case Study of the Quality of a Sausage from Different Producers by Gadrich, Tamar, Pennecchi, Francesca R., Kuselman, Ilya, Hibbert, D. Brynn, Semenova, Anastasia A., Cheow, Pui Sze

“…The newly developed statistical technique of two-way ordinal analysis of variation (ORDANOVA) was applied for the first time to sensory responses in…”
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Development of a membrane-based electrochemical immunosensor by Koh, Guiwan, Agarwal, Shuchi, Cheow, Pui-Sze, Toh, Chee-Seng

“…A membrane-based electrochemical immunosensor sensitive towards proteins is described, based on nanoporous alumina-modified platinum wire electrodes. The…”
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Transport and separation of proteins across platinum-coated nanoporous alumina membranes by Cheow, Pui-Sze, Ting, Eugene Zhi Chao, Tan, Mei Qi, Toh, Chee-Seng

“…In this work, we report the selective transport of three proteins, bovine serum albumin (BSA), lysozyme (Lys) and myoglobin (Mb) across a conductive nanoporous…”
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Characterization of the barrier layer of nanoporous alumina films prepared using two different contact configurations by Koh, Guiwan, Agarwal, Shuchi, Cheow, Pui-Sze, Toh, Chee-Seng

“…We investigated the structure of the barrier layers of nanoporous alumina formed by anodization of aluminum films laid over platinum electrodes by cyclic…”
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Characterization of the electrophoretic mobility of gold nanoparticles with different sizes using the nanoporous alumina membrane system by Yuan, Hong, Cheow, Pui-Sze, Ong, Janice, Toh, Chee-Seng

“…This work presents a new analytical system to study the electrophoretic mobility of gold nanoparticles with different sizes, in which the platinum-coated…”
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Fast and accurate isotope dilution mass spectrometry method for the assignment of trihalomethanes in water in an uncommon accuracy-based proficiency testing programme in Singapore by Gui, Ee Mei, Cheow, Pui Sze, Lu, Ting, Teo, Tang Lin

“…In the light of the instability of trihalomethanes (THMs) in water, a fast and high accuracy method based on headspace gas chromatography-isotope dilution mass…”
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Development of a certified reference material for benzo[a]pyrene and benz[a]anthracene in olive oil by Lu, Ting, Gui, Ee Mei, Wang, Juan, Cheow, Pui Sze, Teo, Tang Lin, Lee, Tong Kooi

“…This paper describes the development of an olive oil certified reference material containing benzo[a]pyrene and benz[a]anthracene. A method combining solid…”
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An accuracy-based proficiency testing programme with metrological reference values for the mass fraction of acesulfame potassium and sucralose in cake mix flour by Cheow, Pui Sze, Teo, Tang Lin, Lu, Ting, Gui, Ee Mei, Lee, Tong Kooi

“…This paper describes a metrological approach to evaluate the measurement capability of laboratories participating in a then Asia Pacific Laboratory…”
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Optimisation of extraction methods and quantification of benzo[a]pyrene and benz[a]anthracene in yerba maté tea by isotope dilution mass spectrometry by Gui, Ee Mei, Lu, Ting, Teo, Tang Lin, Cheow, Pui Sze, Lee, Tong Kooi

“…A gas chromatography–isotope dilution mass spectrometry (GC–IDMS) technique was developed for the quantification of two heavy polyaromatic hydrocarbons (PAHs),…”
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Efficient delivery of metrological services by institutes through accuracy-based proficiency testing programme on additives in food sauce for laboratories in the Southeast Asian region by Cheow, Pui Sze, Teo, Tang Lin, Fortune, Thippaya Junvee, Ebarvia, Benilda Sacop, Hashim, Siti Nur Nazathul Shima, Styarini, Dyah, Wang, Juan, Gui, Ee Mei, Lu, Ting, Mungmeechai, Thanarak, Tangtrirat, Pradthana, Dacuya, Aaron, Veranga, April Rose, Amandy, Grace, Li, Hui Ling, Aristiawan, Yosi, Elishian, Christine, Hindayani, Ayu

“…This paper describes a collaborative effort by five metrology institutes to organise a proficiency testing (PT) programme which aims to evaluate the…”
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Providing a traceable assigned value in a proficiency testing programme on the determination of benzoic acid in orange juice by Cheng, Shiwan, Mesquida, Charline, Gui, Ee Mei, Cheow, Pui Sze, Lee, Tong Kooi, Teo, Tang Lin

“…A proficiency testing (PT) programme on the determination of benzoic acid in orange juice was organised by the Chemical Metrology Laboratory, Health Sciences…”
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A bilateral study for the establishment of comparability in the measurement of ethanol in bioethanol fuel using isotope dilution mass spectrometry by Teo, Tang Lin, Quan, Can, Cheow, Pui Sze, Huang, Ting, Lee, Tong Kooi, Li, Hongmei, Zhang, Wei

“…A bilateral comparative study between two metrology institutes was conducted for the determination of ethanol in bioethanol fuel by isotope dilution mass…”
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