OPTICAL CHEMICAL SENSOR OF Cd(II) IN WATER BASED ON 1-(2-PYRIDYLAZO)-2-NAPHTOL IMMOBILIZED ON POLY(METHYL METHACRYLATE) AND 2-NITROPHENYL OCTYL ETHER MATRIX
Penulis/Author
Moersilah (1); Prof. Drs. Dwi Siswanta, M.Eng., Ph.D. (2); Prof. Drs. Roto, M.Eng, Ph.D. (3); Prof. Drs. Mudasir, M.Eng., Ph.D. (4)
Tanggal/Date
2017
Kata Kunci/Keyword
Abstrak/Abstract
An optical chemical sensor for determination of Cd(II) in aqueous solution has been developed by immobilizing 1-(2-
pyridylazo)-2-naphtol (PAN) in poly(methyl methacrylate) (PMMA) as a matrix and 2-nitrophenyl octyl ether (NPOE) as a
plasticizer. The adsorption of Cd(II) causes the color of the membrane to change from yellow to red-orange with the maximum
absorbance (?max) at 556 nm. The sensor membrane gives the best response towards Cd(II) ion at pH 8.5, after 120 minutes of
contact time, at 2 ppm Cd(II), and 2 mL solution. A linear Cd(II) calibration curve can be developed in the concentration range
of 0.8 - 1.8 ppm with R2
= 0.960. The limit of the detection and limit of quantification are 0.041 ppm and 0.126 ppm,
respectively. The molar absorptivity is found to be 2.3 x 105 L mol-1
cm-1
. The proposed sensor membrane has been applied to
the determination of Cd(II) in the river water with internal standard addition method. The observed percent recovery is in the
range of 100.24 – 107.52%
Rumpun Ilmu
Kimia
Bahasa Asli/Original Language
English
Level
Internasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
OPTICAL CHEMICAL SENSOR OF Cd(II) - MERGED_compressed.pdf
[PAK] Full Dokumen
2
Optical Chemical Sensor of Cd(II).pdf
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OPTICAL CHEMICAL SENSOR OF Cd(II) IN WATER BASED ON 1-(2-PYRIDYLAZO)-2-NAPHTOL IMMOBILIZED ON POLY(METHYL METHACRYLATE) AND 2-NITROPHENYL OCTYL ETHER MATRIX.pdf
