According to HJ479-2009, determination of ethylenediamide hydrochloride, when the absorption value exceeds the upper limit of the standard curve, the laboratory blank solution is diluted, and then absorbed, but the co...According to HJ479-2009, determination of ethylenediamide hydrochloride, when the absorption value exceeds the upper limit of the standard curve, the laboratory blank solution is diluted, and then absorbed, but the concentration can not exceed 6. The relative error between the high-concentration samples and the theoretical accuracy was compared to determine the correlation with the experimental results. A new uncertainty is proposed using the standard curve method, sample fixed capacity, sample’s repeated test, instrument test and working curve fitting.展开更多
文摘According to HJ479-2009, determination of ethylenediamide hydrochloride, when the absorption value exceeds the upper limit of the standard curve, the laboratory blank solution is diluted, and then absorbed, but the concentration can not exceed 6. The relative error between the high-concentration samples and the theoretical accuracy was compared to determine the correlation with the experimental results. A new uncertainty is proposed using the standard curve method, sample fixed capacity, sample’s repeated test, instrument test and working curve fitting.
