鬼臼毒素分子印迹电化学传感器的研制及应用
王春琼等
摘 要 以鬼臼毒素(Podophyllotoxin, PPT)为模板,甲基丙烯酸(Methacrylic acid, MAA)为功能单体,乙二醇二甲基丙烯酸酯(Ethyleneglycol dimethacrylate, EGDMA)为交联剂,固定PPT, MAA和EGDMA的摩尔比为1∶2∶100, 采用原位聚合法,
References
1 Guerram M, Jiang Z Z, Zhang L Y. Chinese J. Natural Medicines, 2012, 10(3): 161-169
2 RquistNii Y, Eksborg S, Axelson M, Harmenberg J, Beck O. J. Chromatogr. B, 2011, 879(5): 326-334
3 DENG ShuDuan, ZHAO XingLing, WANG Wei, HUANG QiLin, DING ZhongTao, CAO QiuE. Chinese J. Anal. Chem., 2006, 34(5): 651-654
邓书端, 赵兴玲, 王 巍, 黄齐林, 丁中涛, 曹秋娥. 分析化学, 2006, 34(5): 651-654
4 ZHU XiaoLiang, ZENG Kang, CHEN FeiLong. China J. Modern Medicine, 2005, 15(5): 769-771
朱晓亮, 曾 抗, 陈飞龙. 中国现代医学杂志, 2005, 15(5): 769-771
5 LIANG RongNing, GAO Qi, QIN Wei. Chinese J. Anal. Chem., 2012, 40(3): 354-358
梁荣宁, 高 奇, 秦 伟. 分析化学, 2012, 40(3): 354-358
6 ZHANG Jin, WANG ChaoYing, LI XiaoPing, NIU YanHui. Chem. J. Chinese Universities, 2013, 34(10): 2296-2302
张 进, 王超英, 李小平, 牛延慧. 高等学校化学学报, 2013, 34(10): 2296-2302
7 SHEN Qing, CUI LiFeng, ZHAO Shuo, LI Ke. Chinese J. Anal. Chem., 2012, 40(3): 442-446
申 晴, 崔莉凤, 赵 硕, 李 科. 分析化学, 2012, 40(3): 442-446
8 XU Wen, LI Xiao, ZHANG WeiYing, YING XiaoGuang. Chem. J. Chinese Universities, 2012, 33 (10): 2199-2204
徐 雯, 李 晓, 张卫英, 英晓光. 高等学校化学学报, 2012, 33 (10): 2199-2204
9 Reddy K K, Gobi K V. Sens. Actuators B, 2013, 183(5): 356-363
10 Chen Y, Chen L, Bi R L, Xu L, Liu Y. Anal. Chim. Acta, 2012, 754(19): 83-90
11 CHEN ZhiQiang, LI JianPing, ZHANG XueHong, JIANG FuYang. Journal of Instrumental Analysis, 2010, 29(1): 97-104
陈志强, 李建平, 张学洪, 蒋复阳. 分析测试学报, 2010, 29(1): 97-104
12 BlancoLopez M C, GutierrezFernandez S, LoboCastanon M J, MirandaOrdieres A J, TunonBlanco P. Anal. Bioanal. Chem., 2004, 378(8): 1922-1928
13 Zhou J, He X W. Anal. Chim. Acta, 1999, 381(1): 85-91
Preparation and Application of Podophyllotoxin Sensor
Based on Molecularly Imprinting Technique
WANG ChunQiong, BAI HuiPing, CHEN Jing, CAO QiuE*
(School of Chemical Science and Technology/Key Laboratory of Medicinal Chemistry for Nature Resource,
Ministry of Education, Yunnan University, Kunming 650091, China)
Abstract A novel electrochemical sensor for the determination of podophyllotoxin (PPT) was prepared by modifying a PPTimprinted membrane, which was synthesized by in situ polymerization with PPT as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross linking agent at the molar ratio of PPT/MAA/EGDMA as 1∶2∶100, on glassy carbon electrode (GCE) followed by eluting PPT from the modified GCE with methanol/acetic acid (1∶1, V/V). The properties of the electrochemical sensor modified with PPTimprinted membrane were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Under the optimum conditions, it was found that the response of peak currents was linear to the concentration of PPT in range of 1.0-120 μmol/L with the detection limit of 0.47 μmol/L. The sensor not only showed high selectivity, but also exhibited good stability and reproducibility. The sensor was satisfactorily applied to the determination of PPT in podophyllum hexandrum and human serum samples with the relative standard deviation (RSD) below 3.9% and recovery ranging from 95.0% to 103.3%.
Keywords Podophyllotoxin; Molecularly imprinted membrane; Electrochemical sensor; In situ polymerization
(Received 7 January 2014; accepted 6 March 2014)
This work was financially supported by the Natural Science Foundation of China (No.20964005) and the Doctoral Fund of Ministry of Education of China (No.20125301110005).
摘 要 以鬼臼毒素(Podophyllotoxin, PPT)为模板,甲基丙烯酸(Methacrylic acid, MAA)为功能单体,乙二醇二甲基丙烯酸酯(Ethyleneglycol dimethacrylate, EGDMA)为交联剂,固定PPT, MAA和EGDMA的摩尔比为1∶2∶100, 采用原位聚合法,
References
1 Guerram M, Jiang Z Z, Zhang L Y. Chinese J. Natural Medicines, 2012, 10(3): 161-169
2 RquistNii Y, Eksborg S, Axelson M, Harmenberg J, Beck O. J. Chromatogr. B, 2011, 879(5): 326-334
3 DENG ShuDuan, ZHAO XingLing, WANG Wei, HUANG QiLin, DING ZhongTao, CAO QiuE. Chinese J. Anal. Chem., 2006, 34(5): 651-654
邓书端, 赵兴玲, 王 巍, 黄齐林, 丁中涛, 曹秋娥. 分析化学, 2006, 34(5): 651-654
4 ZHU XiaoLiang, ZENG Kang, CHEN FeiLong. China J. Modern Medicine, 2005, 15(5): 769-771
朱晓亮, 曾 抗, 陈飞龙. 中国现代医学杂志, 2005, 15(5): 769-771
5 LIANG RongNing, GAO Qi, QIN Wei. Chinese J. Anal. Chem., 2012, 40(3): 354-358
梁荣宁, 高 奇, 秦 伟. 分析化学, 2012, 40(3): 354-358
6 ZHANG Jin, WANG ChaoYing, LI XiaoPing, NIU YanHui. Chem. J. Chinese Universities, 2013, 34(10): 2296-2302
张 进, 王超英, 李小平, 牛延慧. 高等学校化学学报, 2013, 34(10): 2296-2302
7 SHEN Qing, CUI LiFeng, ZHAO Shuo, LI Ke. Chinese J. Anal. Chem., 2012, 40(3): 442-446
申 晴, 崔莉凤, 赵 硕, 李 科. 分析化学, 2012, 40(3): 442-446
8 XU Wen, LI Xiao, ZHANG WeiYing, YING XiaoGuang. Chem. J. Chinese Universities, 2012, 33 (10): 2199-2204
徐 雯, 李 晓, 张卫英, 英晓光. 高等学校化学学报, 2012, 33 (10): 2199-2204
9 Reddy K K, Gobi K V. Sens. Actuators B, 2013, 183(5): 356-363
10 Chen Y, Chen L, Bi R L, Xu L, Liu Y. Anal. Chim. Acta, 2012, 754(19): 83-90
11 CHEN ZhiQiang, LI JianPing, ZHANG XueHong, JIANG FuYang. Journal of Instrumental Analysis, 2010, 29(1): 97-104
陈志强, 李建平, 张学洪, 蒋复阳. 分析测试学报, 2010, 29(1): 97-104
12 BlancoLopez M C, GutierrezFernandez S, LoboCastanon M J, MirandaOrdieres A J, TunonBlanco P. Anal. Bioanal. Chem., 2004, 378(8): 1922-1928
13 Zhou J, He X W. Anal. Chim. Acta, 1999, 381(1): 85-91
Preparation and Application of Podophyllotoxin Sensor
Based on Molecularly Imprinting Technique
WANG ChunQiong, BAI HuiPing, CHEN Jing, CAO QiuE*
(School of Chemical Science and Technology/Key Laboratory of Medicinal Chemistry for Nature Resource,
Ministry of Education, Yunnan University, Kunming 650091, China)
Abstract A novel electrochemical sensor for the determination of podophyllotoxin (PPT) was prepared by modifying a PPTimprinted membrane, which was synthesized by in situ polymerization with PPT as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross linking agent at the molar ratio of PPT/MAA/EGDMA as 1∶2∶100, on glassy carbon electrode (GCE) followed by eluting PPT from the modified GCE with methanol/acetic acid (1∶1, V/V). The properties of the electrochemical sensor modified with PPTimprinted membrane were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Under the optimum conditions, it was found that the response of peak currents was linear to the concentration of PPT in range of 1.0-120 μmol/L with the detection limit of 0.47 μmol/L. The sensor not only showed high selectivity, but also exhibited good stability and reproducibility. The sensor was satisfactorily applied to the determination of PPT in podophyllum hexandrum and human serum samples with the relative standard deviation (RSD) below 3.9% and recovery ranging from 95.0% to 103.3%.
Keywords Podophyllotoxin; Molecularly imprinted membrane; Electrochemical sensor; In situ polymerization
(Received 7 January 2014; accepted 6 March 2014)
This work was financially supported by the Natural Science Foundation of China (No.20964005) and the Doctoral Fund of Ministry of Education of China (No.20125301110005).
摘 要 以鬼臼毒素(Podophyllotoxin, PPT)为模板,甲基丙烯酸(Methacrylic acid, MAA)为功能单体,乙二醇二甲基丙烯酸酯(Ethyleneglycol dimethacrylate, EGDMA)为交联剂,固定PPT, MAA和EGDMA的摩尔比为1∶2∶100, 采用原位聚合法,
References
1 Guerram M, Jiang Z Z, Zhang L Y. Chinese J. Natural Medicines, 2012, 10(3): 161-169
2 RquistNii Y, Eksborg S, Axelson M, Harmenberg J, Beck O. J. Chromatogr. B, 2011, 879(5): 326-334
3 DENG ShuDuan, ZHAO XingLing, WANG Wei, HUANG QiLin, DING ZhongTao, CAO QiuE. Chinese J. Anal. Chem., 2006, 34(5): 651-654
邓书端, 赵兴玲, 王 巍, 黄齐林, 丁中涛, 曹秋娥. 分析化学, 2006, 34(5): 651-654
4 ZHU XiaoLiang, ZENG Kang, CHEN FeiLong. China J. Modern Medicine, 2005, 15(5): 769-771
朱晓亮, 曾 抗, 陈飞龙. 中国现代医学杂志, 2005, 15(5): 769-771
5 LIANG RongNing, GAO Qi, QIN Wei. Chinese J. Anal. Chem., 2012, 40(3): 354-358
梁荣宁, 高 奇, 秦 伟. 分析化学, 2012, 40(3): 354-358
6 ZHANG Jin, WANG ChaoYing, LI XiaoPing, NIU YanHui. Chem. J. Chinese Universities, 2013, 34(10): 2296-2302
张 进, 王超英, 李小平, 牛延慧. 高等学校化学学报, 2013, 34(10): 2296-2302
7 SHEN Qing, CUI LiFeng, ZHAO Shuo, LI Ke. Chinese J. Anal. Chem., 2012, 40(3): 442-446
申 晴, 崔莉凤, 赵 硕, 李 科. 分析化学, 2012, 40(3): 442-446
8 XU Wen, LI Xiao, ZHANG WeiYing, YING XiaoGuang. Chem. J. Chinese Universities, 2012, 33 (10): 2199-2204
徐 雯, 李 晓, 张卫英, 英晓光. 高等学校化学学报, 2012, 33 (10): 2199-2204
9 Reddy K K, Gobi K V. Sens. Actuators B, 2013, 183(5): 356-363
10 Chen Y, Chen L, Bi R L, Xu L, Liu Y. Anal. Chim. Acta, 2012, 754(19): 83-90
11 CHEN ZhiQiang, LI JianPing, ZHANG XueHong, JIANG FuYang. Journal of Instrumental Analysis, 2010, 29(1): 97-104
陈志强, 李建平, 张学洪, 蒋复阳. 分析测试学报, 2010, 29(1): 97-104
12 BlancoLopez M C, GutierrezFernandez S, LoboCastanon M J, MirandaOrdieres A J, TunonBlanco P. Anal. Bioanal. Chem., 2004, 378(8): 1922-1928
13 Zhou J, He X W. Anal. Chim. Acta, 1999, 381(1): 85-91
Preparation and Application of Podophyllotoxin Sensor
Based on Molecularly Imprinting Technique
WANG ChunQiong, BAI HuiPing, CHEN Jing, CAO QiuE*
(School of Chemical Science and Technology/Key Laboratory of Medicinal Chemistry for Nature Resource,
Ministry of Education, Yunnan University, Kunming 650091, China)
Abstract A novel electrochemical sensor for the determination of podophyllotoxin (PPT) was prepared by modifying a PPTimprinted membrane, which was synthesized by in situ polymerization with PPT as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross linking agent at the molar ratio of PPT/MAA/EGDMA as 1∶2∶100, on glassy carbon electrode (GCE) followed by eluting PPT from the modified GCE with methanol/acetic acid (1∶1, V/V). The properties of the electrochemical sensor modified with PPTimprinted membrane were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Under the optimum conditions, it was found that the response of peak currents was linear to the concentration of PPT in range of 1.0-120 μmol/L with the detection limit of 0.47 μmol/L. The sensor not only showed high selectivity, but also exhibited good stability and reproducibility. The sensor was satisfactorily applied to the determination of PPT in podophyllum hexandrum and human serum samples with the relative standard deviation (RSD) below 3.9% and recovery ranging from 95.0% to 103.3%.
Keywords Podophyllotoxin; Molecularly imprinted membrane; Electrochemical sensor; In situ polymerization
(Received 7 January 2014; accepted 6 March 2014)
This work was financially supported by the Natural Science Foundation of China (No.20964005) and the Doctoral Fund of Ministry of Education of China (No.20125301110005).
摘 要 以鬼臼毒素(Podophyllotoxin, PPT)为模板,甲基丙烯酸(Methacrylic acid, MAA)为功能单体,乙二醇二甲基丙烯酸酯(Ethyleneglycol dimethacrylate, EGDMA)为交联剂,固定PPT, MAA和EGDMA的摩尔比为1∶2∶100, 采用原位聚合法,
References
1 Guerram M, Jiang Z Z, Zhang L Y. Chinese J. Natural Medicines, 2012, 10(3): 161-169
2 RquistNii Y, Eksborg S, Axelson M, Harmenberg J, Beck O. J. Chromatogr. B, 2011, 879(5): 326-334
3 DENG ShuDuan, ZHAO XingLing, WANG Wei, HUANG QiLin, DING ZhongTao, CAO QiuE. Chinese J. Anal. Chem., 2006, 34(5): 651-654
邓书端, 赵兴玲, 王 巍, 黄齐林, 丁中涛, 曹秋娥. 分析化学, 2006, 34(5): 651-654
4 ZHU XiaoLiang, ZENG Kang, CHEN FeiLong. China J. Modern Medicine, 2005, 15(5): 769-771
朱晓亮, 曾 抗, 陈飞龙. 中国现代医学杂志, 2005, 15(5): 769-771
5 LIANG RongNing, GAO Qi, QIN Wei. Chinese J. Anal. Chem., 2012, 40(3): 354-358
梁荣宁, 高 奇, 秦 伟. 分析化学, 2012, 40(3): 354-358
6 ZHANG Jin, WANG ChaoYing, LI XiaoPing, NIU YanHui. Chem. J. Chinese Universities, 2013, 34(10): 2296-2302
张 进, 王超英, 李小平, 牛延慧. 高等学校化学学报, 2013, 34(10): 2296-2302
7 SHEN Qing, CUI LiFeng, ZHAO Shuo, LI Ke. Chinese J. Anal. Chem., 2012, 40(3): 442-446
申 晴, 崔莉凤, 赵 硕, 李 科. 分析化学, 2012, 40(3): 442-446
8 XU Wen, LI Xiao, ZHANG WeiYing, YING XiaoGuang. Chem. J. Chinese Universities, 2012, 33 (10): 2199-2204
徐 雯, 李 晓, 张卫英, 英晓光. 高等学校化学学报, 2012, 33 (10): 2199-2204
9 Reddy K K, Gobi K V. Sens. Actuators B, 2013, 183(5): 356-363
10 Chen Y, Chen L, Bi R L, Xu L, Liu Y. Anal. Chim. Acta, 2012, 754(19): 83-90
11 CHEN ZhiQiang, LI JianPing, ZHANG XueHong, JIANG FuYang. Journal of Instrumental Analysis, 2010, 29(1): 97-104
陈志强, 李建平, 张学洪, 蒋复阳. 分析测试学报, 2010, 29(1): 97-104
12 BlancoLopez M C, GutierrezFernandez S, LoboCastanon M J, MirandaOrdieres A J, TunonBlanco P. Anal. Bioanal. Chem., 2004, 378(8): 1922-1928
13 Zhou J, He X W. Anal. Chim. Acta, 1999, 381(1): 85-91
Preparation and Application of Podophyllotoxin Sensor
Based on Molecularly Imprinting Technique
WANG ChunQiong, BAI HuiPing, CHEN Jing, CAO QiuE*
(School of Chemical Science and Technology/Key Laboratory of Medicinal Chemistry for Nature Resource,
Ministry of Education, Yunnan University, Kunming 650091, China)
Abstract A novel electrochemical sensor for the determination of podophyllotoxin (PPT) was prepared by modifying a PPTimprinted membrane, which was synthesized by in situ polymerization with PPT as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross linking agent at the molar ratio of PPT/MAA/EGDMA as 1∶2∶100, on glassy carbon electrode (GCE) followed by eluting PPT from the modified GCE with methanol/acetic acid (1∶1, V/V). The properties of the electrochemical sensor modified with PPTimprinted membrane were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Under the optimum conditions, it was found that the response of peak currents was linear to the concentration of PPT in range of 1.0-120 μmol/L with the detection limit of 0.47 μmol/L. The sensor not only showed high selectivity, but also exhibited good stability and reproducibility. The sensor was satisfactorily applied to the determination of PPT in podophyllum hexandrum and human serum samples with the relative standard deviation (RSD) below 3.9% and recovery ranging from 95.0% to 103.3%.
Keywords Podophyllotoxin; Molecularly imprinted membrane; Electrochemical sensor; In situ polymerization
(Received 7 January 2014; accepted 6 March 2014)
This work was financially supported by the Natural Science Foundation of China (No.20964005) and the Doctoral Fund of Ministry of Education of China (No.20125301110005).
摘 要 以鬼臼毒素(Podophyllotoxin, PPT)为模板,甲基丙烯酸(Methacrylic acid, MAA)为功能单体,乙二醇二甲基丙烯酸酯(Ethyleneglycol dimethacrylate, EGDMA)为交联剂,固定PPT, MAA和EGDMA的摩尔比为1∶2∶100, 采用原位聚合法,
References
1 Guerram M, Jiang Z Z, Zhang L Y. Chinese J. Natural Medicines, 2012, 10(3): 161-169
2 RquistNii Y, Eksborg S, Axelson M, Harmenberg J, Beck O. J. Chromatogr. B, 2011, 879(5): 326-334
3 DENG ShuDuan, ZHAO XingLing, WANG Wei, HUANG QiLin, DING ZhongTao, CAO QiuE. Chinese J. Anal. Chem., 2006, 34(5): 651-654
邓书端, 赵兴玲, 王 巍, 黄齐林, 丁中涛, 曹秋娥. 分析化学, 2006, 34(5): 651-654
4 ZHU XiaoLiang, ZENG Kang, CHEN FeiLong. China J. Modern Medicine, 2005, 15(5): 769-771
朱晓亮, 曾 抗, 陈飞龙. 中国现代医学杂志, 2005, 15(5): 769-771
5 LIANG RongNing, GAO Qi, QIN Wei. Chinese J. Anal. Chem., 2012, 40(3): 354-358
梁荣宁, 高 奇, 秦 伟. 分析化学, 2012, 40(3): 354-358
6 ZHANG Jin, WANG ChaoYing, LI XiaoPing, NIU YanHui. Chem. J. Chinese Universities, 2013, 34(10): 2296-2302
张 进, 王超英, 李小平, 牛延慧. 高等学校化学学报, 2013, 34(10): 2296-2302
7 SHEN Qing, CUI LiFeng, ZHAO Shuo, LI Ke. Chinese J. Anal. Chem., 2012, 40(3): 442-446
申 晴, 崔莉凤, 赵 硕, 李 科. 分析化学, 2012, 40(3): 442-446
8 XU Wen, LI Xiao, ZHANG WeiYing, YING XiaoGuang. Chem. J. Chinese Universities, 2012, 33 (10): 2199-2204
徐 雯, 李 晓, 张卫英, 英晓光. 高等学校化学学报, 2012, 33 (10): 2199-2204
9 Reddy K K, Gobi K V. Sens. Actuators B, 2013, 183(5): 356-363
10 Chen Y, Chen L, Bi R L, Xu L, Liu Y. Anal. Chim. Acta, 2012, 754(19): 83-90
11 CHEN ZhiQiang, LI JianPing, ZHANG XueHong, JIANG FuYang. Journal of Instrumental Analysis, 2010, 29(1): 97-104
陈志强, 李建平, 张学洪, 蒋复阳. 分析测试学报, 2010, 29(1): 97-104
12 BlancoLopez M C, GutierrezFernandez S, LoboCastanon M J, MirandaOrdieres A J, TunonBlanco P. Anal. Bioanal. Chem., 2004, 378(8): 1922-1928
13 Zhou J, He X W. Anal. Chim. Acta, 1999, 381(1): 85-91
Preparation and Application of Podophyllotoxin Sensor
Based on Molecularly Imprinting Technique
WANG ChunQiong, BAI HuiPing, CHEN Jing, CAO QiuE*
(School of Chemical Science and Technology/Key Laboratory of Medicinal Chemistry for Nature Resource,
Ministry of Education, Yunnan University, Kunming 650091, China)
Abstract A novel electrochemical sensor for the determination of podophyllotoxin (PPT) was prepared by modifying a PPTimprinted membrane, which was synthesized by in situ polymerization with PPT as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross linking agent at the molar ratio of PPT/MAA/EGDMA as 1∶2∶100, on glassy carbon electrode (GCE) followed by eluting PPT from the modified GCE with methanol/acetic acid (1∶1, V/V). The properties of the electrochemical sensor modified with PPTimprinted membrane were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Under the optimum conditions, it was found that the response of peak currents was linear to the concentration of PPT in range of 1.0-120 μmol/L with the detection limit of 0.47 μmol/L. The sensor not only showed high selectivity, but also exhibited good stability and reproducibility. The sensor was satisfactorily applied to the determination of PPT in podophyllum hexandrum and human serum samples with the relative standard deviation (RSD) below 3.9% and recovery ranging from 95.0% to 103.3%.
Keywords Podophyllotoxin; Molecularly imprinted membrane; Electrochemical sensor; In situ polymerization
(Received 7 January 2014; accepted 6 March 2014)
This work was financially supported by the Natural Science Foundation of China (No.20964005) and the Doctoral Fund of Ministry of Education of China (No.20125301110005).
摘 要 以鬼臼毒素(Podophyllotoxin, PPT)为模板,甲基丙烯酸(Methacrylic acid, MAA)为功能单体,乙二醇二甲基丙烯酸酯(Ethyleneglycol dimethacrylate, EGDMA)为交联剂,固定PPT, MAA和EGDMA的摩尔比为1∶2∶100, 采用原位聚合法,
References
1 Guerram M, Jiang Z Z, Zhang L Y. Chinese J. Natural Medicines, 2012, 10(3): 161-169
2 RquistNii Y, Eksborg S, Axelson M, Harmenberg J, Beck O. J. Chromatogr. B, 2011, 879(5): 326-334
3 DENG ShuDuan, ZHAO XingLing, WANG Wei, HUANG QiLin, DING ZhongTao, CAO QiuE. Chinese J. Anal. Chem., 2006, 34(5): 651-654
邓书端, 赵兴玲, 王 巍, 黄齐林, 丁中涛, 曹秋娥. 分析化学, 2006, 34(5): 651-654
4 ZHU XiaoLiang, ZENG Kang, CHEN FeiLong. China J. Modern Medicine, 2005, 15(5): 769-771
朱晓亮, 曾 抗, 陈飞龙. 中国现代医学杂志, 2005, 15(5): 769-771
5 LIANG RongNing, GAO Qi, QIN Wei. Chinese J. Anal. Chem., 2012, 40(3): 354-358
梁荣宁, 高 奇, 秦 伟. 分析化学, 2012, 40(3): 354-358
6 ZHANG Jin, WANG ChaoYing, LI XiaoPing, NIU YanHui. Chem. J. Chinese Universities, 2013, 34(10): 2296-2302
张 进, 王超英, 李小平, 牛延慧. 高等学校化学学报, 2013, 34(10): 2296-2302
7 SHEN Qing, CUI LiFeng, ZHAO Shuo, LI Ke. Chinese J. Anal. Chem., 2012, 40(3): 442-446
申 晴, 崔莉凤, 赵 硕, 李 科. 分析化学, 2012, 40(3): 442-446
8 XU Wen, LI Xiao, ZHANG WeiYing, YING XiaoGuang. Chem. J. Chinese Universities, 2012, 33 (10): 2199-2204
徐 雯, 李 晓, 张卫英, 英晓光. 高等学校化学学报, 2012, 33 (10): 2199-2204
9 Reddy K K, Gobi K V. Sens. Actuators B, 2013, 183(5): 356-363
10 Chen Y, Chen L, Bi R L, Xu L, Liu Y. Anal. Chim. Acta, 2012, 754(19): 83-90
11 CHEN ZhiQiang, LI JianPing, ZHANG XueHong, JIANG FuYang. Journal of Instrumental Analysis, 2010, 29(1): 97-104
陈志强, 李建平, 张学洪, 蒋复阳. 分析测试学报, 2010, 29(1): 97-104
12 BlancoLopez M C, GutierrezFernandez S, LoboCastanon M J, MirandaOrdieres A J, TunonBlanco P. Anal. Bioanal. Chem., 2004, 378(8): 1922-1928
13 Zhou J, He X W. Anal. Chim. Acta, 1999, 381(1): 85-91
Preparation and Application of Podophyllotoxin Sensor
Based on Molecularly Imprinting Technique
WANG ChunQiong, BAI HuiPing, CHEN Jing, CAO QiuE*
(School of Chemical Science and Technology/Key Laboratory of Medicinal Chemistry for Nature Resource,
Ministry of Education, Yunnan University, Kunming 650091, China)
Abstract A novel electrochemical sensor for the determination of podophyllotoxin (PPT) was prepared by modifying a PPTimprinted membrane, which was synthesized by in situ polymerization with PPT as template, methacrylic acid (MAA) as functional monomer and ethylene glycol dimethacrylate (EGDMA) as cross linking agent at the molar ratio of PPT/MAA/EGDMA as 1∶2∶100, on glassy carbon electrode (GCE) followed by eluting PPT from the modified GCE with methanol/acetic acid (1∶1, V/V). The properties of the electrochemical sensor modified with PPTimprinted membrane were characterized by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS). Under the optimum conditions, it was found that the response of peak currents was linear to the concentration of PPT in range of 1.0-120 μmol/L with the detection limit of 0.47 μmol/L. The sensor not only showed high selectivity, but also exhibited good stability and reproducibility. The sensor was satisfactorily applied to the determination of PPT in podophyllum hexandrum and human serum samples with the relative standard deviation (RSD) below 3.9% and recovery ranging from 95.0% to 103.3%.
Keywords Podophyllotoxin; Molecularly imprinted membrane; Electrochemical sensor; In situ polymerization
(Received 7 January 2014; accepted 6 March 2014)
This work was financially supported by the Natural Science Foundation of China (No.20964005) and the Doctoral Fund of Ministry of Education of China (No.20125301110005).