標(biāo)準(zhǔn)號：ISO 6374-1981
中文標(biāo)準(zhǔn)名稱：工業(yè)用天然及人造冰晶石和氟化鋁 磷含量的測定 萃取后原子吸收光譜法
英文標(biāo)準(zhǔn)名稱：Cryolite, natural and artificial, and aluminium fluoride for industrial use; Determination of phosphorus content; Atomic absorption spectrometric method after extraction
標(biāo)準(zhǔn)類型：D59;G10
發(fā)布日期：1999/12/31 12:00:00
實(shí)施日期：1999/12/31 12:00:00
中國標(biāo)準(zhǔn)分類號：D59;G10
國際標(biāo)準(zhǔn)分類號：71.060.20;73.060.40
適用范圍：Specifies a method based on the fusion of a test portion with sodium carbonate and boric acid and dissolution in perchloric acid solution, followed by formation of the ammonium molybdophosphate complex and extraction of the complex with isobutyl acetate. The solution is absorbed into an acetylene/dinitrogen monoxide flame and the molybdenum, and hence the phosphorus, is determined by measuring the absorbance of the 379,8 nm line emitted by a molybdenum hollow-cathode lamp.