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Analysis of recombinant protein purity and heterogeneity by capillary electrophoresis

Measuring weight content of the elements (As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Sb, V, Zn) in soil, ground, and bottom sediment samples

INTRODUCTION

This analytical procedure is intended for measuring th e weight content of the el ements (vanadium, cadmium, cobalt, manganese, copper, arsenic, nickel, lead, ant imony, chromium, zinc, and mercury) in soil, ground, and bottom sediment samples by atomic absorption sp ectrometry using an “MGA-915M” Graphite Furnace AA Spectrometer.

MEASURING METHOD

The method is based on measuring resonance radiation absorption that occurs when the radiation passes through a layer of atomic vapor in the electrically heated graphite furnace of the “MGA-915M” AA spectrometer. The concentration of the elements is determined from the integrated analytical signal and is calculated using a preset calibration graph. Elements in various states (mobile, acid-soluble, or total) are extracted from soil, ground, and bottom sediment samples according to standard procedures currently in force.

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Measuring weight content of the elements (As, Cd, Co, Cr, Cu, Hg, Mn, Ni, Pb, Sb, V, Zn) in soil, ground, and bottom sediment samplesDownload application file
EQUIPMENT FOR ANALYSIS