Publications by authors named "Bo-Xing"
Background: Cinnamomum cassia (L.) J.Presl (Cinnamon) was known as a kind of hot herb, improved circulation and warmed the body.
View Article and Find Full Text PDFA trioctylphosphine oxide (TOPO) coated tungsten probe has been prepared and used for the determination of Bi and the mug/g level in copper alloy and lead. Bismuth is preconcentrated on the probe which is placed in a graphite-cup furnace for AA determination of bismuth. The method has good sensitivity and minimises analysis time.
View Article and Find Full Text PDFA method of concentration and determination of several polynuclear aromatic hydrocarbons (PAHs) in water by flotation enrichment and HPLC is described. Triton X-100 was used as the foaming agent to extract the PAHs from water by passage of nitrogen. Reversed-phase liquid chromatography with coupled fluorescence detection was applied to separate and determine these PAHs.
View Article and Find Full Text PDFAn indirect method for determination of trace phenol in water by atomic-absorption spectrophotometry (AAS) is described. The phenol is brominated in acidic solution with KBrO(3)-KBr solution at room temperature. The excess of bromine is reacted with KI and the I(2) produced is extracted into cyclohexane and then reduced back to I(-) with ascorbic acid.
View Article and Find Full Text PDFArticle Synopsis
- An indirect method is outlined to measure trace amounts of cyanide in water using atomic-absorption spectrophotometry, where cyanide forms a stable complex with palladium in alkaline solutions.
- This complex can bond with tetra-alkylammonium ions and be efficiently extracted into n-butyl alcohol, allowing for direct analysis of palladium, which indicates the presence of cyanide.
- The method has a detection limit of 0.1 mug/ml for cyanide and adheres to Beer's law for concentrations between 0.13-9 mug of CN(-) per ml, with minimal interference from other foreign ions.