离子选择性电极法测定温泉与中药材中痕量氟

Determination of fluorine in hot springs and Chinese herbal materials by ion selective electrode

目的:测定两处海南温泉水样与巴戟天、槟榔仁、益智仁等24种海口市售中药材中氟元素含量。方法:采用离子选择电极法测定温泉水与中药材中痕量氟。结果:氟元素含量:温泉水Ⅰ13.06 mg/L,温泉水Ⅱ6.44 mg/L,丹参1.10 mg/kg,鸡骨草7.26 mg/kg,苦楝皮5.56 mg/kg,白鲜皮1.29 mg/kg,石斛1.38 mg/kg,半夏0.10 mg/kg,桑叶9.33 mg/kg,槟榔仁,益智仁,槐花,金不换,当归,白芍,巴戟天,胡椒根,益母草,旱莲草,溪黄草,桑白皮,茯苓皮,牡丹皮,红藤,天南星,枇杷叶等17种中药材均未检出氟。结论:所测两处温泉水样均达到氟医疗价值浓度(F-≥1 mg/L);中药材氟元素含量远小于《农业部2003年茶叶行业标准(NY659-2003)》(F-≤200 mg/kg)。

Objective:Determine contents of trace fluorine in two hot springs and twenty-four Chinese herbal materials(Radix Morindae Officinalis,Semen Arecae, Fructus Alpiniae Oxyphyllae,etc.).Methods: Using the ion selective electrode(ISE) to determine contents of trace fluorine.Results:Contents of fluorine in hot spring in mg/L: 13.06 for Hot SpringⅠ(N18°09′34″,E108°56′30″),6.44 for hot springⅡ(N18°37′27″,E109°48′28″).Contents of fluorine in Chinese herbal materials in mg/kg: 1.10 for Salvia Miltiorrhiza Bge.,7.26 f...