Kankun Jin

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A simple and rapid spectrophotometric method for measuring recombinant inclusion body concentrations in the presence of Escherichia coli cell debris has been applied to monitoring the performance of an industrial disc stack centrifuge. Turbidimetric measurements were made at two wavelengths, i.e., 600 nm and 420 nm, and the ratios of OD(600nm)/OD(420nm)(More)
This paper discusses the geochemistry and mineralogy of the barkinite liptobiolith of the Late Permian age from the Jinshan Mine, Guangde County, Anhui Province, China. Samples were examined using inductively coupled plasma-mass spectroscopy, X-ray fluorescence, cold-vapor atomic absorption spectrometry, ion-selective electrode, sequential chemical(More)
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