Determination of methyltin (cas 16408-15-4) compounds in urine of occupationally exposed and general population by in situ ethylation and headspace SPME coupled with GC-FPD
-
Add time:08/05/2019 Source:sciencedirect.com
A method for the determination of methyltin (cas 16408-15-4) compounds in human urine samples was developed using headspace solid-phase microextration (HS-SPME) coupled with gas chromatographic separation and flame photometric detection. Three methyltin compounds, monomethyltin (MMT), dimethyltin (DMT), and trimethyltin (TMT) were in situ ethylated by sodium tetraethylborate (NaBEt4) for SPME and GC-FPD analysis. Under the optimized condition, the detection limits of MMT, DMT, and TMT were 8.1, 2.5 and 5.6 ng Sn L−1, and the relative standard deviations were 11.0%, 7.3% and 4.0%, respectively. Methyltin compounds in thirteen urine samples from occupationally exposed population and two from general population were analyzed by the proposed method. The concentrations of total methyltin in the tested urine samples of occupationally exposed population ranged from 26.0 to 7892 ng Sn L−1, and the average level is higher than those of the two non-occupationally exposed individuals. The methyltins in urine were adjusted by osmolality in order to enhance the comparability of different urine samples and the feasibility of this correction method was validated.
We also recommend Trading Suppliers and Manufacturers of methyltin (cas 16408-15-4). Pls Click Website Link as below: cas 16408-15-4 suppliers
Prev:Urgent caution to trace organometal pollution: Occurrence, distribution and sources of methyltin (cas 16408-15-4)s, butyltins and phenyltins in sediments from South Hangzhou Bay, China
Next:Ultraviolet degradation of methyltin (cas 16408-15-4)s: Elucidating the mechanism by identification of a detected new intermediary product and investigating the kinetics at various environmental conditions) - 【Back】【Close 】【Print】【Add to favorite 】
- Related Information
- Crystal, molecular and electronic structure of methyltin (cas 16408-15-4) triiodide08/13/2019
- methyltin (cas 16408-15-4) Halides and Their Molecular Complexes08/12/2019
- Seasonal methyltin (cas 16408-15-4) and (3-dimethylsulphonio)propionate concentrations in leaf tissue of Spartina alterniflora of the Great Bay estuary (NH)08/11/2019
- The polarized infrared spectra and crystal structure of methyltin (cas 16408-15-4) trichloride08/10/2019
- methyltin (cas 16408-15-4)s in the marine environment08/09/2019
- Rapid and direct speciation of methyltin (cas 16408-15-4)s in seawater by an on-line coupled high performance liquid chromatography–hydride generation–ICP/MS system08/08/2019
- Tiered environmental risk assessment of methyltin (cas 16408-15-4)s from heat stabilizers in rigid PVC in Sweden08/07/2019
- Ultraviolet degradation of methyltin (cas 16408-15-4)s: Elucidating the mechanism by identification of a detected new intermediary product and investigating the kinetics at various environmental conditions08/06/2019
- Urgent caution to trace organometal pollution: Occurrence, distribution and sources of methyltin (cas 16408-15-4)s, butyltins and phenyltins in sediments from South Hangzhou Bay, China08/04/2019
-
Health and Chemical more >