南京市某鸭血收购摊1份可疑样品成份应急检测

Emergency analysis of components of a suspected sample collected from a duck blood collection booth

目的查明某鸭血收购摊1份可疑样品的主要成份。方法采用化学法、等离子发射光谱法和离子色谱法等技术手段对样品进行初筛,先后采用排除法、对照法及溶液中阴阳离子平衡理论进行推断,采用反相高效液相色谱法和离子色谱法进行定量检测。结果与国标检测方法进行比对,3种试验手段所测得的柠檬酸钠结果一致。溶液中柠檬酸钠的含量能够合理解释等离子发射光谱和离子色谱法测定溶液中钠元素、氯化物及硫酸根的含量。结论可疑样品为含有柠檬酸钠的溶液,并含有一定量有害的化学元素砷和铅等,对人体健康存在一定风险。

Objective To identify the main components of a suspected sample from a duck blood collection booth.Methods Chemical method,plasma emission spectrometry and ion chromatography techniques were used to screen samples primarily.The exclusion method and comparison method were used,then the ionic balance theory was deduced.The ion chromatography and reversed-phase HPLC were used for quantitative analysis.Results Compared with the national standard,the results of sodium citrate analyzed by the3methods were consistent.The content of sodium citrate in solution could reasonably explain the sodium,chloride and sulfate detected in solution by plasma emission spectrometry and ion chromatography.Conclusion The suspected sample was a solution containing sodium citrate,it also contained certain amount of harmful chemical elements such as arsenic and lead,which had certain risks to human health.