桑色素分光光度法测定锌精矿中痕量钛

Determination of trace titanium in zinc mineral by spectrophotometry with morin

研究了在0 1mol/LNaNO3的介质中,阴离子表面活性剂存在下,桑色素与Ti 反应有较高的选择性和灵敏度,据此用分光光度法测定锌精矿中微量钛。显色体系中钛 络合物的最大吸收波长为410nm,摩尔吸光系数ε=2 23×104,RSD=4 9%～7 3%,钛量在0 01～0 70μg/mL范围内符合比尔定律,方法的检出限为0 014μg/mL。

In 01mol/L NaNO3 medium and under the function of anion surfactant, the reaction of morin and titanium have higher selection and sensitivity Therefore, a new method is developed for determining titanium in zinc mineral by spectrophotometryThe complex of morin and titanium exhibits maxinum absorption at 410nm, with apparent molar absorptivity of 223×104L·cm-1·mol-1. RSD is 492%～734%Beer's law is obeyed in the range of 001μg/mL～070μg/mL fot titaniumThe detection limit is 0014μg/mL