Abstract：The analysis of matrix composition of galvanized sheet is an important basic technology to ensure the material quality. On the basis of establishing calibration curve by the manufacturer, the influencing factors in the determination of glow discharge optical emission spectrometry (such as excitation voltage, excitation current, spectral trace and drift correction, sample quality, sample surface quality, argon purity and flow rate) were controlled to realize the determination of multi-elements in galvanized sheet. Three low alloy steel reference materials were determined according to the experimental method. The found results were basically consistent with the certified values, and the error was within the allowable error of the standard material certificate. The relative standard deviations (RSD, n=9) were between 0.61% and 6.8%. Three samples of galvanized sheet were determined according to the experimental method. The contents of C and S were also determined by infrared absorption method after combustion in high frequency induction furnace (GB/T 20123-2006/ISO 15350: 2000), and the contents of Si, Mn, P, Cr, Ni, Mo, Cu, V, Al, Ti, Nb were determined by inductively coupled plasma atomic emission spectrometry (GB/T 20125-2006) for comparison. The results showed that the experimental method was basically consistent with the infrared absorption method after combustion in high frequency induction furnace or the inductively coupled plasma atomic emission spectrometry. The relative standard deviations (RSD, n=9) were between 0.38% and 3.4%
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