2017
DOI: 10.21831/jps.v21i1.10828
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Sensor Timbal Berbasis Potensiometri Untuk Mendeteksi Kadar Timbal Dalam Darah

Abstract: Keberadaan timbal di lingkungan yang disebabkan oleh polusi dapat masuk dalam darah. Menurut Center for Disease Control and Prevention (CDC) batas ambang timbal dalam darah yaitu 4.8×10-7 M. Apabila melebihi batas tersebut maka dapat menyebabkan keracunan bahkan kematian. Dengan demikian diperlukan kontrol darah secara berkala dengan metode relatif mudah. Pada penelitian ini dikembangkan sensor timbal dalam darah berbasis elektroda selektif ion timbal yang dimodifikasi dengan membran kitosan dan garam timbal s… Show more

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“…A chemical sensor prototype has been developed to detect Pb 2+ based on chitosan-PbS composites, in which the sensor has a detection limit of 0.032 ppm in the linear concentration range of 0.032-0.332 ppm. (Novitasari, et al, 2016). In order to prepare an easyto-manufacture Pb 2+ sensor and can be used repeatedly, it is necessary to modify the design and supporting materials.…”
Section: Introductionmentioning
confidence: 99%
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“…A chemical sensor prototype has been developed to detect Pb 2+ based on chitosan-PbS composites, in which the sensor has a detection limit of 0.032 ppm in the linear concentration range of 0.032-0.332 ppm. (Novitasari, et al, 2016). In order to prepare an easyto-manufacture Pb 2+ sensor and can be used repeatedly, it is necessary to modify the design and supporting materials.…”
Section: Introductionmentioning
confidence: 99%
“…The amine group in chitosan is advantageous, because it is easily modified by a cross-linking reaction process, one of which is glutaraldehyde as an efficient crosslinking agent (Akakuru, et.al., 2017;Mulyasuryani, Haryanto, Sulistyarti, & Rumhayati, 2018;Nair, Best & Cameron, 2020). The cross-linked chitosan forms a hydrogel that can be used as a supporting membrane in the development of Pb 2+ sensors (Novitasari, et al, 2016). Meanwhile, clay is a mineral with the main content of SiO2 and Al2O3, in which the outer surface layer binds the Na + , K + and NH4 + ions (Yahaya, Jikan, Badarulzaman, & Adamu, 2017;Garcia-Valles, Alfonso, Martinez, & Roca, 2020).…”
Section: Introductionmentioning
confidence: 99%
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