Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone
Colorimetric analysis of heavy metal ions can be realized by the aid of Ag nanoparticles to improve the analytical characteristics. The method is based on the localized surface plasmon resonance (LSPR) properties of the Ag nanoparticles (AgNPs). In this work, we applied the AgNPs with the addition o...
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MDPI AG
2019-06-01
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| Series: | Chemosensors |
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| Online Access: | https://www.mdpi.com/2227-9040/7/3/28 |
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| author | Roto Roto Bella Mellisani Agus Kuncaka Mudasir Mudasir Adhitasari Suratman |
| author_facet | Roto Roto Bella Mellisani Agus Kuncaka Mudasir Mudasir Adhitasari Suratman |
| author_sort | Roto Roto |
| collection | DOAJ |
| description | Colorimetric analysis of heavy metal ions can be realized by the aid of Ag nanoparticles to improve the analytical characteristics. The method is based on the localized surface plasmon resonance (LSPR) properties of the Ag nanoparticles (AgNPs). In this work, we applied the AgNPs with the addition of dithizone to further improve the selectivity and sensitivity of Pb<sup>2+</sup> analysis. Colorimetric sensing of Pb<sup>2+</sup> ions based on the polyvinyl alcohol (PVA)-stabilized-colloidal AgNPs in the presence of dithizone is reported. A linear decrease in the AgNPs LSPR absorbance at 421 nm was observed along with the increase in the Pb<sup>2+</sup> concentration in the range of 0.50−10 µg/L. The other ions give a minor change in the LSPR absorbance of colloidal AgNPs. The Pb<sup>2+</sup> limit of detection, the limit of quantification, and sensitivity were found to be 0.64 ± 0.04 µg/L, 2.1 ± 0.15 µg/L, 0.0282 ± 0.0040 L/µg (n = 5), respectively. The obtained sensitivity is comparable with that of the immunosensing method. The proposed method could offer a good alternative for colorimetric analysis of Pb<sup>2+</sup> ions by using nanoparticles in the presence of ligands, which can improve selectivity. |
| first_indexed | 2024-12-20T06:45:48Z |
| format | Article |
| id | doaj.art-3515cc9b3e3343e08bfc71aee2b1bbdb |
| institution | Directory Open Access Journal |
| issn | 2227-9040 |
| language | English |
| last_indexed | 2024-12-20T06:45:48Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Chemosensors |
| spelling | doaj.art-3515cc9b3e3343e08bfc71aee2b1bbdb2022-12-21T19:49:42ZengMDPI AGChemosensors2227-90402019-06-01732810.3390/chemosensors7030028chemosensors7030028Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of DithizoneRoto Roto0Bella Mellisani1Agus Kuncaka2Mudasir Mudasir3Adhitasari Suratman4Department of Chemistry, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, IndonesiaDepartment of Chemical Analysis, Politeknik AKA Bogor, Bogor 16154, IndonesiaDepartment of Chemistry, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, IndonesiaDepartment of Chemistry, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, IndonesiaDepartment of Chemistry, Universitas Gadjah Mada, Sekip Utara, Yogyakarta 55281, IndonesiaColorimetric analysis of heavy metal ions can be realized by the aid of Ag nanoparticles to improve the analytical characteristics. The method is based on the localized surface plasmon resonance (LSPR) properties of the Ag nanoparticles (AgNPs). In this work, we applied the AgNPs with the addition of dithizone to further improve the selectivity and sensitivity of Pb<sup>2+</sup> analysis. Colorimetric sensing of Pb<sup>2+</sup> ions based on the polyvinyl alcohol (PVA)-stabilized-colloidal AgNPs in the presence of dithizone is reported. A linear decrease in the AgNPs LSPR absorbance at 421 nm was observed along with the increase in the Pb<sup>2+</sup> concentration in the range of 0.50−10 µg/L. The other ions give a minor change in the LSPR absorbance of colloidal AgNPs. The Pb<sup>2+</sup> limit of detection, the limit of quantification, and sensitivity were found to be 0.64 ± 0.04 µg/L, 2.1 ± 0.15 µg/L, 0.0282 ± 0.0040 L/µg (n = 5), respectively. The obtained sensitivity is comparable with that of the immunosensing method. The proposed method could offer a good alternative for colorimetric analysis of Pb<sup>2+</sup> ions by using nanoparticles in the presence of ligands, which can improve selectivity.https://www.mdpi.com/2227-9040/7/3/28silver nanoparticleslocalized surface plasmon resonance (LSPR)colorimetryPb(II)-dithizone complex |
| spellingShingle | Roto Roto Bella Mellisani Agus Kuncaka Mudasir Mudasir Adhitasari Suratman Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone Chemosensors silver nanoparticles localized surface plasmon resonance (LSPR) colorimetry Pb(II)-dithizone complex |
| title | Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone |
| title_full | Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone |
| title_fullStr | Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone |
| title_full_unstemmed | Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone |
| title_short | Colorimetric Sensing of Pb<sup>2+</sup> Ion by Using Ag Nanoparticles in the Presence of Dithizone |
| title_sort | colorimetric sensing of pb sup 2 sup ion by using ag nanoparticles in the presence of dithizone |
| topic | silver nanoparticles localized surface plasmon resonance (LSPR) colorimetry Pb(II)-dithizone complex |
| url | https://www.mdpi.com/2227-9040/7/3/28 |
| work_keys_str_mv | AT rotoroto colorimetricsensingofpbsup2supionbyusingagnanoparticlesinthepresenceofdithizone AT bellamellisani colorimetricsensingofpbsup2supionbyusingagnanoparticlesinthepresenceofdithizone AT aguskuncaka colorimetricsensingofpbsup2supionbyusingagnanoparticlesinthepresenceofdithizone AT mudasirmudasir colorimetricsensingofpbsup2supionbyusingagnanoparticlesinthepresenceofdithizone AT adhitasarisuratman colorimetricsensingofpbsup2supionbyusingagnanoparticlesinthepresenceofdithizone |