采用在线柱浓缩-超高效液相色谱联用技术测定水体中痕量甲萘威和呋喃丹.水样过滤后直接进样,采用固相萃取小柱富集待测物,梯度洗脱后,利用阀切换技术将待测物反冲至分析柱Acclaim RSLC C18(100 mm×2.1 mm,2.2 μm)上进行色谱分离,以10 mmol/L 醋酸铵缓冲溶液(pH 5.0,用醋酸调节)和乙腈分别为流动相A和B,梯度洗脱,泵流速为0.8 mL/min,检测波长为280 nm,二极管阵列检测器检测.甲萘威和呋喃丹在1.0~100 μg/L 范围内线性良好(相关系数r2 > 0.9999),检出限(S/N=3)分别为0.5和0.25 μg/L,加标回收率为76.0% ~120.0%.用所建立的方法测定了水中痕量的甲萘威与呋喃丹的含量,结果令人满意.
参考文献
[1] | Liu C W,Liu X W,Zhai G S,et al.Chinese Journal of Chromatography (刘长武,刘潇威,翟广书,等.色谱),2003,21(3):255 |
[2] | Dai X L,Zhou Y.Environmental Monitoring in China (戴秀丽,周怡.中国环境监测),2009,25(4):32 |
[3] | EPA method 531.2 |
[4] | Chen J G,Zhao Q L,Lian Z Y,et al.Chinese Journal of Analytical Chemistry (陈剑刚,赵倩铃,连宗衍,等.分析化学),2005,33(8):1167 |
[5] | GB/T 5750.9-2006 |
[6] | GB 5749-2006 |
[7] | Yang R Z,Wang J H,Zhang R,et al.Chinese Journal of Chromatography (杨如箴,王金花,张蓉,等.色谱),2010,28(8):769 |
[8] | Nunes G S,Marco M P,Ribeiro M L,et al.J Chromatogr A,1998,823:109 |
[9] | Dionex Corporation.Application Note 261.[2011-04-18].http:/ /www.search2.dionex.com/search?site=en-us&client=www_frontend&proxystylesheet=www_frontend&filter=0&output=xml_no_dtd&q=Sensitive+Determination+of+Microcystins |
[10] | Dionex Corporation.Application Note 256.[2011-04-18].http:/ /www.search2.dionex.com/search?q=Determination+of+Vitamin+B12+in+Beverages+Using&btnG=Dionex+Search&client=www_frontend&proxystylesheet=www_frontend&output=xml_no_dtd&sort=date%3AD%3AL%3Ad1&entqr=3&oe=UTF-8&ie=UTF-8&ud=1&site=en-us |
[11] | Dionex Corporation.Application Note 213.[2011-04-18].http:/ /www.search2.dionex.com/search?q=Determination+of+Polycyclic+Aromatic+Hydrocarbons+%28PAHs%29+in+Edible+Oils+by+Donor-Acceptor+Complex&btnG=Dionex+Search&client=www_frontend&proxystylesheet=www_frontend&output=xml_no_dtd&sort=date%3AD%3AL%3Ad1&entqr=3&oe=UTF-8&ie=UTF-8&ud=1&site=en-us |
[12] | Patsias J,Papadopoulou-Mourkidou E.J Chromatogr A,2000,904(2):171 |
[13] | Akamine Y,Yasui-Furukori N,Kojima M,et al.J Sep Sci,2010,33(21):3292 |
[14] | Xu L,Xia N.Journal of Instrumental Analysis (徐磊,夏宁.分析测试学报),2011,30(5):558 |
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