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Publication
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| Title of Article |
A circular dichroism sensor for selective detection of Cd2+ and S2− based
on the in-situ generation of chiral CdS quantum dots |
| Date of Acceptance |
25 April 2017 |
| Journal |
| Title of Journal |
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Standard |
ISI |
| Institute of Journal |
ELSEVIER |
| ISBN/ISSN |
http://dx.doi.org/10.1016/j.saa.2017.04.071 |
| Volume |
2017 |
| Issue |
183 |
| Month |
April |
| Year of Publication |
2017 |
| Page |
408–416 |
| Abstract |
We demonstrate an advance in the fabrication of circular dichroism (CD) sensors for detection of Cd2+ and S2−
based on chiral CdS quantum dots (QDs) generated by a facile in-situ reaction. The chiral quantum dots are generated in solutions composed of Cd2+, S2−, cysteamine (CA) and L-penicillamine (L-PA), with the number of the
generated particles limited by either the Cd2+ or S2− concentration. We show that the magnitude of the CD signal produced by the QDs is linearly related to the initial concentration of Cd2+ and S2−, with excellent selectivity
over other ions. Our sensor functions over concentration ranges of 65–200 μM and 7–125 μM with detection
limits of 59.7 and 1.6 μM for Cd2+ and S2−, respectively. The sensor is applied in real water samples with results
comparing favorably with those obtained from ICP-OES (for Cd2+) and HPLC (for S2−) |
| Keyword |
Quantum dots ,Chiral nanoparticle, Circular dichroism sensor, Chemical sensor, Heavy metal ions ,Sulfide ion |
| Author |
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| Reviewing Status |
มีผู้ประเมินอิสระ |
| Status |
ตีพิมพ์แล้ว |
| Level of Publication |
นานาชาติ |
| citation |
false |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Attach file |
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| Citation |
0
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Journal Publication
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