英语翻译采用硫酸溶解锑锭样品,盐酸溶解三氧化二锑样品,用氢氧化钠溶液使Sb3+沉淀从而使基体锑与微量砷分离,通过加入硫脲

英语翻译
采用硫酸溶解锑锭样品,盐酸溶解三氧化二锑样品,用氢氧化钠溶液使Sb3+沉淀从而使基体锑与微量砷分离,通过加入硫脲-抗坏血酸将As5+还原成As3+,然后在原子荧光仪上测定锑锭及三氧化二锑中的砷.对氢化物发生条件进行考察,确定还原剂硼氢化钾的浓度为25 g/L、测定介质为20 % HCl（V/V）、硫脲-抗坏血酸溶液用量为5 mL.共存元素干扰试验表明,沉淀后溶液中残留少量锑的干扰在加入1 mL酒石酸溶液后可以完全消除,而样品中其他杂质元素在加入硫脲-抗坏血酸溶液后不干扰砷的测定.方法的检出限为0.156 ng/mL .对锑锭及三氧化二锑样品进行分析,相对标准偏差为0.95%～1.2%,测定值与国家标准方法的测定值相一致.
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采用硫酸溶解锑锭样品,盐酸溶解三氧化二锑样品, 用氢氧化钠溶液使Sb3+沉淀从而使基体锑与微量砷分离,通过加入硫脲-抗坏血酸将As5+还原成As3+,然后在原子荧光仪上测定锑锭及三氧化二锑中的砷.对氢化物发生条件进行考察,确定还原剂硼氢化钾的浓度为25 g/L、测定介质为20 % HCl（V/V）、硫脲-抗坏血酸溶液用量为5 mL.
The method adopted was to dissolve the antimony ingot sample with sulfuric acid, dissolve the antimony trioxide with hydrochloric acid, and isolate the antimony substrate from trace arsenium by using sodium hydrate solution to precipitate Sb3+, followed by reducing As5+ to As3+ with the addition of thiourea-arcosbic acid and then the arsenic content in the antimony ingot and antimony trioxide was determined through the use of an atomic fluorescence spectrometer. Observation was conducted on the condition of hydride generation and the concentration of reduction agent potassium borohydride was determined to be 25 g/L, determination medium 20 % HCl（V/V）and the dosage of thiourea-arcosbic acid solution was 5 mL.

共存元素干扰试验表明,沉淀后溶液中残留少量锑的干扰在加入1 mL酒石酸溶液后可以完全消除,而样品中其他杂质元素在加入硫脲-抗坏血酸溶液后不干扰砷的测定.方法的检出限为0.156 ng/mL .对锑锭及三氧化二锑样品进行分析,相对标准偏差为0.95%～1.2%,测定值与国家标准方法的测定值相一致.
The coexist element interference test conducted had shown that the interference of small amount of residual antimony could be totally eliminated by adding 1mL of tartaric acid solution, and after the addition of thiourea-arcosbic acid solution, the rest of the impurity elements in the sample did not interfere with the determination of arsenic content. The detection limit of this method was 0.156 ng/mL. An analysis was conducted on the samples of antimony ingot and antimony trioxide, it was found that the relative standard deviation was 0.95% ~1.2%, the determined value was consistent to the determined value of the national standard method.

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