Laksana ChaimongkolSiwaporn PinkaewHarold C. FurrJohn EstesNeal E. CraftEmorn WasantwisutPattanee WinichagoonMahidol UniversityPrince of Songkla UniversityUniversity of Wisconsin MadisonCraft Technologies2018-05-032018-05-032011-08-01Clinical Biochemistry. Vol.44, No.12 (2011), 1030-103218732933000991202-s2.0-79960311327https://repository.li.mahidol.ac.th/handle/20.500.14594/11501Objective: To determine the performance of a portable fluorometer for measuring serum retinol (SR) concentration. Design and methods: Serum samples were obtained from 75 factory worker women and 143 school children. SR concentration was quantified using a portable fluorometer ('CRAFTi') and HPLC analysis. Results: SR by HPLC (1.23. ±. 0.43. μmol/L) and CRAFTi (1.16. ±. 0.46. μmol/L) was significantly correlated. Sensitivity and specificity were 85.3% and 78.0% (cutoff of 1.05. μmol/L). Kappa statistics showed moderate agreement. Conclusions: CRAFTi portable fluorometer is a promising field-friendly tool for screening vitamin A deficiency. © 2011 The Canadian Society of Clinical Chemists.Mahidol UniversityBiochemistry, Genetics and Molecular BiologyArticleSCOPUS10.1016/j.clinbiochem.2011.05.023