Citation: Hw. Gao et al., Improved determination of mercury complex with Thiomicher's ketone by beta-correction spectrophotometry, J AOAC INT, 83(1), 2000, pp. 231-236
Citation: Hw. Gao et al., Primary-secondary wavelength spectrophotometric determination of trace amounts of silver in wastewater with 2,4-dibromo-6-carboxy-benzenediazoaminoazobenzene, J CHEM S P, 22(4), 2000, pp. 275-280
Citation: Hw. Gao et al., Investigation of properties of rare earth complexes with dibromo-p-methyl-methylsulfonazo by spectral correction technique, P I A S-CH, 112(6), 2000, pp. 573-578
Citation: Hw. Gao et Wg. Liu, Spectrophotometric investigation of germanium complex solution with o-chlorophenylfluorone and determination of trace amounts of germanium, B KOR CHEM, 21(11), 2000, pp. 1090-1094
Citation: Hw. Gao, Investigation of properties of copper, ferrous complexes with 1-(5-bromo-2-pyridylazo)-2-naphthol-6-sulphonic acid and application of substitution reaction in metallic complex to selective determination of trace amounts of metal, TALANTA, 52(5), 2000, pp. 817-823
Citation: Hw. Gao et Pf. Zhang, Investigation of copper complex solution with new ligand o-chlorobenzenediazoaminobenzene-p-azobenzene and determination of trace copper in wastewater, J INDIAN CH, 77(5), 2000, pp. 249-251
Citation: Hw. Gao et al., Investigation of neodymium complex with acid chrome blue K by beta-correction spectrophotometry, J INDIAN CH, 77(4), 2000, pp. 192-193
Citation: Br. Huang et Hw. Gao, Growth and carbohydrate metabolism of creeping bentgrass cultivars in response to increasing temperatures, CROP SCI, 40(4), 2000, pp. 1115-1120
Citation: Hw. Gao et Lq. Yu, Spectrophotometric determination of properties of alkaline earth complex solutions with dibromo-o-carboxy-chlorophosphonazo, ANN CHIM, 90(9-10), 2000, pp. 605-612
Citation: Hw. Gao et al., Beta-correction spectrophotometric investigation of silver complex with 2,4-dibromo-6-carboxy-benzenediazoaminoazobenzene and determination of trace amounts of silver in waste-water, CAN J A S S, 44(4), 1999, pp. 119-124
Citation: Hw. Gao, Improving the submicro determination of vanadium in natural water using primary-secondary wavelength spectrophotometry, J ANALYT CH, 54(10), 1999, pp. 941-943
Citation: Hw. Gao et Jr. Dias, Selective protection of the various hydroxy groups of cholic acid and derivatives. A review, ORG PREP PR, 31(2), 1999, pp. 145