Yan-Feng He

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Slurry introduction graphite furnace atomic absorption spectrometry combining the significant advantages of the solid and liquid sampling methods is already considered as a mature technique. It was widely utilized for metal determination in trace and even ultra trace analysis in organic and inorganic complicated matrix, even for routine analysis.(More)
This study is to determine the content of three alkaloids and establish the HPLC fingerprint of "Jianlian" Nelumbinis Plumula. The HPLC method of content determination was as follows: Thermo C18 (4. 6 mm x 250 mm, 5 μm) was conducted with acetonitrile-sodium dodecyl sulfonate solution-acetic acid (56: 43: 1) at a flow rate of 1.0 mL x min(-1). The(More)
AIM To establish a new chemiluminescent assay with high sensitivity for detecting E. coli O157:H7 in food. METHODS The assay was established based on the alkaline phosphatase (ALP) labeled anti-E. coli O157:H7 antibody, which reacted with an excellent chemiluminescent reagent, 3(2' spiroadamantane)4 methoxy 4(3''phosphoryloxy) phenyl 1,2 dioxetane (AMPPD)(More)
Direct determination of copper, iron and sodium in high-purity alumina was performed by slurry-furnace atomic absorption spectrometry with Smith-Hieftje background correction (S-H-GFAAS). Instrument conditions of GFAAS such as pyrolysis, atomization and hollow cathode lamp current by S-H background correction were optimized, and the optimal experimental(More)
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