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中文摘要：
以电感耦合等离子体原予发射光谱法（ICP-AES）为检测手段，系统研究新型吸附剂六钛酸钾晶须对Co（Ⅱ），Ni（Ⅱ）和Cr（Ⅲ）的吸附行为以及解吸的主要因素，并考察共存离子的干扰情况。研究结果表明：在pH值为7.0，振荡时间为5min，静置时间为30min时，吸附率可达到95％以上；以10mol/L 3mol／L HCl作为解脱剂，振荡5min，静置40min，可将吸附在六钛酸钾晶须上的Co（Ⅱ），Ni（Ⅱ）和Cr（Ⅲ）定量洗脱。本法测定Co（Ⅱ），Ni（Ⅱ）和Cr（Ⅲ） 的检出限分别为：0．0092，0．0053和0．0089mg／L，相对标准偏差（RSD）为0．98％，0．75％和10．87％。在优化的实验条件下，将其用于磷化废水中Co（Ⅱ），Ni（Ⅱ）和Cr（Ⅲ）含量的测定，加标回收率为90％～102％。
英文摘要：
The potassium hexatitanate whisker was used as solid-phase extractant and inductively coupled plasma-atomic emission spectrometry （ICP-AES） as sensitive detector. The main factors of adsorption and desorption behavior were studied. The results show that the adsorption rates of Co^2＋, Ni^2＋ and Cr^3＋ by potassium hexatitanate whisker are over 95% at pH 7.0 after oscillating for 5 min and holding for 30 min, and Co^2＋, Ni^2＋ and Cr^3＋ can be eluted from potassium hexatitanate whisker with 10 mL HCl （3 mol/L） oscillating time of 5 min and holding time of 40 min. The detection limit of Co^2＋, Ni^2＋ and Cr^3＋ （3G n = 9） are 0.009 2, 0.005 3, 0.008 9 mg/L, respectively, the relative standard deviation （RSD） are 0.98%, 0.75% and 0.87%, respectively. Under the optimum conditions, the method is applied to the determination of analyte in waster water of phosphor, and the obtained recovery is 90%-102%.
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