analytical extraction
1.Solid-phase microextraction (SPME) is a novel solvent-free analytical technique, ableto integrate extraction, concentration and sample introduction in a single step. Thus, it hasbeen proved to be significantly more rapid, simple and easier. Especially PDMS (100μm) ismore suitable for adsorbing and enriching the OCPs in the seawater after its comparison withthe other two fibers, PDMS-DVB(65μm)and PA(85μm).
2.Additionally, the extraction efficiency of lutein from kale was 13.644 mg/100 g with analytical method of AOAC.
3.An analytical method for the determination of the macrolide antibiotic residues in honey was developed. A solid-phase extraction was employed for the isolation of the erythromycin(ERM),roxithromycin(ROM), tilmicosin(TIL),tylosin(TYL),kitasamycin(KIT),josamycin(JOS),oleandomycin(OLM),and spiramycin I(SPM-Ⅰ) from the diluted honey samples.
4.An analytical mothod for determination of six kinds of organ-phosphorus pesticide such as malathion, methyl parathion, parathion, Rogor (dimethoate), dichlorovos and trichlorfor in environmental water by solid-phase extraction(SPE) combined with gas-chromatography(GC) was developed.
5.A solvent extraction method for determinating ethylene/propylene copolymer content in OCP type viscosity index improver was introduced. The analytical results indicated that the method was simple, convenient, rapid and accurate.
6.The total recoveries of extraction procedure and analytical method were 104. 2% for 240 g/L and 106.3% for 764 g/L respectively, and the affinity of rhCyPA to CsA was better than those of CsA analogs( CsB,CsC, CsD ).
7.The slovent extraction method of separating α nuclides from high level liquid waste (HLLW) is established by HDEHP, TiOA and TRPO. A separation procedure and analytical method for 237 Np, 239 Pu, 241 Am and all radioactivity of α nuclides in HLLW is recommended.
