Dzegilenko N B, Korchagin V B
Antibiotiki. 1978 Jun;23(6):489-93.
A quantitative method was developed for determination of phenyl ether of phenylmalonic acid (I) in the presence of phenol. The method is based on measurement of the optic density of the characteristic absorption bands of I at 1133 and 1770 cm-1 of IR-spectrum. Absorption of I at the above frequencies responded to Ber's law. Determination of I (solution in methylen chloride) was carried out on a standard curve in accordance with equation y : bx for the both frequencies. The value of constants b of the direct regressions for the frequencies of 1133 and 1770 cm-1 were determined with relative errtor of +/- 1.2 and 2.3 per cent respectively. The correlation coefficients were equal to 0.98 and 0.95.
开发了一种在苯酚存在下测定苯基丙二酸苯醚（I）的定量方法。该方法基于测量I在红外光谱1133和1770 cm-1处特征吸收带的光密度。I在上述频率下的吸收符合比尔定律。I（二氯甲烷溶液）的测定是根据两个频率下的y:bx方程在标准曲线上进行的。1133和1770 cm-1频率下直接回归的常数b值分别以±1.2%和2.3%的相对误差确定。相关系数分别为0.98和0.95。
