ICP-OES法快速测定复方氯化钠注射液中氯化钾和氯化钙的含量
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篇名: | ICP-OES法快速测定复方氯化钠注射液中氯化钾和氯化钙的含量 |
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摘要: | 目的:建立快速测定复方氯化钠注射液中氯化钾和氯化钙含量的方法。方法:采用电感耦合等离子体发射光谱法,样品经适当稀释后直接进样测定并换算为两种成分的含量。发射频率为1 300 W,载气流量为15 L/min,辅助气流量为0.2 L/min,雾化气流量为0.8 L/min,蠕动泵速为0.8 L/min,雾化器压力为315 kPa,观察方式为轴向观察,钾元素和钙元素分析谱线分别为766.490 nm和315.887 nm。结果:钾和钙检测质量浓度线性范围均为1.0~12.0 mg/L(r=0.999 7、0.999 9);精密度和重复性试验的RSD<1%;加样回收率分别为98.5%~100.5%、99.3%~102.3%,RSD分别为0.59%、0.98%(n=9)。结论:该方法准确、快捷、简便,可用于复方氯化钠注射液的质量控制。 |
ABSTRACT: | OBJECTIVE: To establish a method for the rapid contents determination of potassium chloride and calcium chloride in Compound sodium chloride injection. METHODS: After diluted in appropriate way, Compound sodium chloride injection was sampled directly and contents of potassium chloride and calcium chloride were determined simultaneously by ICP-OES. The powder was 1 300 W, plasma gas flow rate was 15 L/min, auxiliary cooling gas flow was 0.2 L/min, atomizer flow rate was 0.8 L/min, the peristaltic pump rate was 0.8 L/min, atomizer pressure was 315 kPa, and the observation was axial observation, analysis spectral lines of potassium and calcium were 766.490 nm and 315.887 nm. RESULTS: The linear ranges of potassium and calcium were 1.0-12.0 mg/L (r=0.999 7 and 0.999 9); RSDs of precision and reproducibility tests were lower than 1%; recoveries were 98.5%-100.5% (RSD=0.59%,n=9) and 99.3%-102.3% (RSD=0.98%,n=9). CONCLUSIONS: The method is simple, rapid and simple, and can be used for the quality control of Compound sodium chloride injection. |
期刊: | 2016年第27卷第18期 |
作者: | 周伟明,李华锦,程国华 |
AUTHORS: | ZHOU Weiming,LI Huajin,CHENG Guohua |
关键字: | 电感耦合等离子体发射光谱法;复方氯化钠注射液;氯化钾;氯化钙;含量测定 |
KEYWORDS: | ICP-OES; Compound sodium chloride injection; Potassium chloride; Calcium chloride; Content determination |
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