Search Results - "Teo, Tang Lin"

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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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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Determination of cyanuric acid using exact matching isotope dilution mass spectrometry by Koh, Guiwan, Gui, Ee-mei, Teo, Tang-Lin, Lee, Tong-Kooi

“…A high‐accuracy double isotope dilution mass spectrometric method using an exact matching approach with GC coupled to a mass spectrometer for the analysis of…”
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Evaluation of low-density lipoprotein cholesterol equations by cross-platform assessment of accuracy-based EQA data against SI-traceable reference value by Tan, Hwee Tong, Yong, Sharon, Liu, Hong, Liu, Qinde, Teo, Tang Lin, Sethi, Sunil Kumar

“…Low-density lipoprotein cholesterol (LDLC) is the primary cholesterol target for the diagnosis and treatment of cardiovascular disease (CVD). Although…”
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Measurement of urine albumin by liquid chromatography-isotope dilution tandem mass spectrometry and its application to value assignment of external quality assessment samples and certification of reference materials by Chen, Yizhao, Liu, Hong, Loh, Tze Ping, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi, Sethi, Sunil Kumar

“…Urine albumin is measured in clinical laboratories by immunoturbidimetry. However, large biases are observed among the different routine methods. To…”
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Bridged Triphenylamine-Based Dendrimers: Tuning Enhanced Two-Photon Absorption Performance with Locked Molecular Planarity by Fang, Zhen, Teo, Tang-Lin, Cai, Liping, Lai, Yee-Hing, Samoc, Anna, Samoc, Marek

“…Triphenylamine derivatives bridged by methylene units afford a near planar molecular platform in a series of one dimer and two oligomers exhibiting increased…”
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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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Simple and accurate candidate reference measurement procedure for total testosterone in human serum by one-step liquid-liquid extraction coupled with isotope dilution mass spectrometry by Chen, Yizhao, Teo, Hui Ling, Liu, Hong, Loh, Tze Ping, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi, Sethi, Sunil Kumar

“…Testosterone in human serum is commonly tested in clinical laboratories using immunoassay methods as well as liquid chromatography-tandem mass spectrometry…”
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Response to Letter to the Editor regarding “Achieving comparability with IFCC reference method for the measurement of hemoglobin A1c by use of an improved isotope-dilution mass spectrometry method” by Liu, Hong, Wong, Lingkai, Yong, Sharon, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi

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Infinite Three-Dimensional Polymeric Metalloporphyrin Network via Six-Coordinate Zn(II) and Two Axial Oxygen Donors by Teo, Tang-Lin, Vetrichelvan, Muthalagu, Lai, Yee-Hing

“…An X-ray crystallographic study of zinc(II) 5,15-di-(2-methoxymethylphenyl)-porphyrin indicates that it forms a coordination polymer through ligation of the…”
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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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Enhancing the accuracy of measurement of small molecule organic biomarkers by Teo, Tang Lin, Lippa, Katrice A., Mackay, Lindsey, Yong, Sharon, Liu, Qinde, Camara, Johanna E., Delatour, Vincent, Lee, Tong Kooi, Lalere, Béatrice, O’ Connor, Gavin, Henrion, André, Kato, Megumi, Numata, Masahiko, Kwon, Ha-Jeong, Jeong, Ji-Seon, Xu, Bei, Song, Dewei, Nammoonnoy, Jintana, Wollinger, Wagner

“…Over two decades, the Organic Analysis Working Group (OAWG) of the Consultative Committee for Amount of Substance: Metrology in Chemistry and Biology (CCQM)…”
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Commutable whole blood reference materials for hemoglobin A1c validated on multiple clinical analyzers by Liu, Hong, Wong, Lingkai, Yong, Sharon, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi, Loh, Tze Ping, Sethi, Sunil Kumar, Wong, Moh Sim, Cosio, Shelia Marie Delos Santos, Ho, Clement K M, Setoh, Johnson Weng Sung, Lim, Sok Fong Maria, Lee, Grace Lay Lay, Khalid, Hafash, Lim, Sharine, Lam, Choong-Weng, Lee, Mee-Yin, Yeo, Chin Pin, Chincholkar, Pallavi Ravikiran, Hawkins, Robert, Ng, Bih-Yann

“…Background The measurement of hemoglobin A1c (HbA1c) is important for diagnosing diabetes mellitus as well as assessing glycemic control in diabetic patients…”
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Expedient measurement of total protein in human serum and plasma via the biuret method using fiber optic probe for patient samples and certified reference materials by Yong, Sharon, Ng, Cheng Yang, Liu, Hong, Chen, Yiting, Liu, Qinde, Teo, Tang Lin, Loh, Tze Ping, Sethi, Sunil Kumar

“…The biuret method is currently recognized as a reference measurement procedure for serum/plasma total protein by the Joint Committee for Traceability in…”
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Extent of Equivalence of Results for Urine Albumin among 3 Candidate Mass Spectrometry Reference Measurement Procedures by Miller, W Greg, Bachmann, Lorin M, Budd, Jeffrey, Beasley-Green, Ashley, Phinney, Karen W, Tan, Hwee Tong, Teo, Tang Lin, Liu, Qinde, Shiba, Seiei, Seegmiller, Jesse

“…Urine albumin (UA) is an important biomarker of chronic kidney disease. Current in vitro diagnostic medical devices (IVD-MDs) for measuring UA are not…”
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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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Commutability assessment of human urine certified reference materials for albumin and creatinine on multiple clinical analyzers using different statistical models by Liu, Hong, Ng, Cheng Yang, Liu, Qinde, Teo, Tang Lin, Loh, Tze Ping, Wong, Moh Sim, Sethi, Sunil Kumar, Tan, Jun Guan, Heng, Ping Ying, Saw, Sharon, Lam, Leslie Choong-Weng, Lee, Joanne Mee-Yin, Khaled, Khairee Bin, Phyu, Hnin Pwint, Ong, Noel Wan Ting

“…Urine albumin concentration and albumin–creatinine ratio are important for the screening of early-stage kidney damage. Commutable urine certified reference…”
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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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Response to Letter to the Editor regarding "Achieving comparability with IFCC reference method for the measurement of hemoglobin A.sub.1c by use of an improved isotope-dilution mass spectrometry method" by Liu, Hong, Wong, Lingkai, Yong, Sharon, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi

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Simple and accurate measurement of carbamazepine in surface water by use of porous membrane-protected micro-solid-phase extraction coupled with isotope dilution mass spectrometry by Teo, Hui Ling, Wong, Lingkai, Liu, Qinde, Teo, Tang Lin, Lee, Tong Kooi, Lee, Hian Kee

“…To achieve fast and accurate analysis of carbamazepine in surface water, we developed a novel porous membrane-protected micro-solid-phase extraction (μ-SPE)…”
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