Naked eye detection of cadmium using inorganic-organic hybrid mesoporous material

被引：43

作者：

Balaji, T ^{[1
]}

Sasidharan, M ^{[1
]}

Matsunaga, H ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Compact Chem Proc, Nigatake 9838551, Japan

来源：

ANALYTICAL AND BIOANALYTICAL CHEMISTRY | 2006年 / 384卷 / 02期

关键词：

inorganic-organic hybrid material; optical sensor; cadmium; 4-(2-pyridylazo)resorcinol; industrial effluents;

D O I：

10.1007/s00216-005-0187-2

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A novel and low-cost optical sensor for the naked eye detection of Cd2+ in aqueous media based on mesoporous silica containing 4-(2-pyridylazo) resorcinol (PAR) as a probe molecule anchored by N-trimethoxysilylpropyl-N, N,N-trimethylammonium chloride (TMAC) was prepared. The effects of various factors such as pH, solvent volume, temperature, reaction time, amount of the material, and the presence of various ions were studied in order to optimize operating conditions. The detection was based on the color change of PAR from orange-yellow to purple as a result of complexation with Cd2+. The intensity of the Cd-PAR complex varies linearly with the Cd2+ concentration, from zero to 1.78 x 10(-7) mol dm(-3). The detection and quantification limits for the method when determining Cd2+ were 1.75 x 10(-8) and 5.77 x 10(-8) mol dm(-3), respectively, with a correlation coefficient of 0.99. Good chemical stability of the material was observed for a period of five months. The developed sensor was applied to the analysis of various industrial effluents and tap water samples.

引用

页码：488 / 494

页数：7

共 25 条

[1]

AGARWAL YK, 1986, ANALYST, V111, P305

[2]

ATSDR, 1999, TOX PROF CADM

[3] Optical test strip for calcium determination based on a neutral ionophore [J].

Capitán-Vallvey, LF ;

Ramos, MDF ;

de Cienfuegos-Gálvez, PA .

ANALYTICA CHIMICA ACTA, 2002, 451 (02) :231-241

[4]

CHANEY RL, 1999, CADMIUM SOILS PLANTS, P219

[5] AN OPTICAL SENSOR FOR THE DETECTION OF HEAVY-METAL IONS [J].

CZOLK, R ;

REICHERT, J ;

ACHE, HJ .

SENSORS AND ACTUATORS B-CHEMICAL, 1992, 7 (1-3) :540-543

[6] AN OPTICAL SENSOR FOR THE DETECTION OF CD(II) IONS [J].

CZOLK, R ;

REICHERT, J ;

ACHE, HJ .

SENSORS AND ACTUATORS A-PHYSICAL, 1991, 26 (1-3) :439-441

[7] Heavy metal ions detection in solution, in sol-gel and with grafted porphyrin monolayers [J].

Delmarre, D ;

Méallet, R ;

Bied-Charreton, C ;

Pansu, RB .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1999, 124 (1-2) :23-28

[8] Analytical investigation of the chemical reactivity and stability of aminopropyl-grafted silica in aqueous medium [J].

Etienne, M ;

Walcarius, A .

TALANTA, 2003, 59 (06) :1173-1188

[9] Spectrophotometric studies on the simultaneous determination of cadmium and mercury with 4-(2-pyridylazo)-resoreinol [J].

Hashem, EY .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 2002, 58 (07) :1401-1410

[10]

HERNANDEZ AMC, 2002, ANAL CHIM ACTA, V452, P169

← 1 2 3 →