CAJ | 학술논문

铁矿石中砷的测定方法众多。氢化物发生-原子荧光光谱分析方法把蒸汽进样技术与无色散原子荧光光谱测定的特点完美地结合起来，具有仪器结构简单、灵敏度高、气相干扰少和分析速度快等特点。通过试验可知，采用王水溶解试样，测量结果在允许差范围内，溶解试样比较完全，结果比较准确。矿石中痕量砷的测量过程中基体干扰比较大，加入硫脲-抗坏血酸混合溶液进行掩蔽，基体干扰能够有效地消除。该方法测定值与 ICP 测定值相比较，结果令人满意，该方法准确度较高。
철광석중신적측정방법음다。경화물발생-원자형광광보분석방법파증기진양기술여무색산원자형광광보측정적특점완미지결합기래，구유의기결구간단、령민도고、기상간우소화분석속도쾌등특점。통과시험가지，채용왕수용해시양，측량결과재윤허차범위내，용해시양비교완전，결과비교준학。광석중흔량신적측량과정중기체간우비교대，가입류뇨-항배혈산혼합용액진행엄폐，기체간우능구유효지소제。해방법측정치여 ICP 측정치상비교，결과령인만의，해방법준학도교고。
There are many methods of arsenic determination in iron ore.Hydride generation atomic fluorescence spectrometry a-nalysis method makes colorless powder atomic fluorescence spectrometry for the determination of characteristics of perfect combine. It has the advantage of simple structure,high sensitivity,gas phase,less noise and speed characteristic analysis.The experiment shows:the samples are dissolved by aqua regia.The results and the actual value are in the allowable deviation range,the sample is dissolved completely,and the result are accurate.In the process of the measurement of trace arsenic in ore,the matrix interference is relatively large,the mixed solution of thiourea and ascorbic acid is added,and matrix interference can be effectively eliminated. The results of this method are compared with the results of ICP,they are satisfactory and the method is accurate.