Development of a Rapid and Simple Digestion Method of Freshwater Sediments for As, Cd, Cr, Cu, Pb, Fe, and Zn Determination by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES): An Evaluation of Dilute Nitric Acid

Mokoena, Dibueng P.; Mngadi, Sihle; Sihlahla, Masixole; Dimpe, Mogolodi K.; Nomngongo, Philiswa N.

doi:10.1080/15320383.2019.1575334

Cited by 14 publications

(6 citation statements)

References 30 publications

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“…However, the problems arising from the formation of highly corrosive HF had to be addressed through the use of high dilution factors, addition of H 3 BO 3 and an inert sample introduction system. Mokoena et al 105 evaluated dilute HNO 3 hot-plate digestion as a means to avoid dilution prior to analysis by ICP-AES. Optimised conditions for 1.0 g of sample were 180 °C, 45 minutes and 10 mL of 5 M HNO 3 .…”

Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2021

J. Anal. At. Spectrom.

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Section: Analysis Of Soils Plants and Related Materialsmentioning

confidence: 99%

Atomic spectrometry update – a review of advances in environmental analysis

Bacon

Butler

Cairns

et al. 2021

J. Anal. At. Spectrom.

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“…Hence, methods for detecting the cellular metal ions are also required. There are multiple methods for monitoring ions, such as atomic absorption‐emission spectrometry, [34] electrochemical methods, [35] and inductively coupled plasma atomic emission spectroscopy [36] . However, these traditional techniques usually demand sample pretreatment, sophisticated procedure and costly instrument.…”

Section: D‐luciferin‐based Probes For Bioimagingmentioning

confidence: 99%

Activity‐Based Luciferase‐Luciferin Bioluminescence System for Bioimaging Applications

et al. 2021

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There is growing interest in applying bioluminescence for imaging varies biological processes in life sciences due to its high resolution, selectivity, and signal/noise ratio (no need of external light excitation). Among the diverse bioluminescence systems, firefly luciferin–luciferase system is considered to be the most popular one for bioimaging applications both in vitro and in vivo. The general design strategy of this system is to cage luciferin (i. e., free luciferin is protected with distinctive functional groups). When the protecting moieties are removed by their corresponding analytes, bioluminescence signal turns “on”, enabling people to understand their biological processes. Considering that d‐luciferin‐luciferase bioluminescence imaging system is now becoming a hot and cutting‐edge research topic, in this minireview, we briefly explain the bioluminescence mechanism and summarize the biological molecule‐responsive, d‐luciferin‐based bioluminescence imaging probes. Moreover, the attempts to optimize the photochemical properties of d ‐luciferin are also introduced. Current challenges and future perspectives for activity‐based luciferase‐luciferin bioluminescence system are also outlooked. With the understanding of the structure−property relationships and working mechanisms of these bioluminescence probes, we hope that this minireview might provide effective guidance for the development of bioluminescence imaging probes and even their clinical translations.

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“…Hal ini menunjukan bahwa pada saat pengujian sampel dengan metode ini terdapat kondisi sampel yang tidak boleh dalam keadaan pH basa. Oleh sebab itu maka pelarut yang digunakan adalah HNO3 encer untuk mengendalikan kestabilan pH larutan (Mokoena, et al, 2019…”

Section: Degradasi Dipercepatunclassified

Validasi Metode Analisis Penentuan Kadar Logam Berat Pb, Cd dan Cr Terlarut dalam Limbah Cair Industri Tekstil dengan Metode Inductively Coupled Plasma Optical Emission Spectrometry Prodigy7

2021

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Konsep pembangunan secara berkelanjutan diperlukan seiring dengan perkembangan industri. Aktivitas industri menghasilkan limbah buangan yang harus diolah sebagai salah satu konsep penerapan pembangunan berkelanjutan. Kehadiran logam berat dalam limbah cair industri yang melebihi baku mutu air buangan dapat mencemari lingkungan dan berbahaya bagi mahluk hidup. Keberadaan logam berat seperti timah hitam (Pb), cadmium (Cd) dan kromium (Cr) berbahaya bagi lingkungan di perairan karena toksisitas yang cukup tinggi dan non-biodegradable. Metode pengujian penentuan konsentrasi logam berat Pb, Cd dan Cr dalam limbah cair industri tekstil diperlukan untuk mendapatkan metode yang valid. Penelitian validasi metode dalam penelitian ini yaitu menggunakan proses pengujian melalui tahap preparasi dekstruksi basah, kemudian diuji dengan Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) Prodigy 7. Metode ini bertujuan untuk mendapatkan 3 (tiga) kadar logam berat dalam satu waktu yang dibandingkan terhadap standar terukur. Validasi metode yang dilakukan untuk penentuan kadar logam tersebut telah memenuhi persyaratan validasi, dimana persentase Recovery sampel harus berada pada rentang 98-102% dengan nilai RSD <2%. Pada pengujian akurasi, presisi dan nilai regresi linear koefisien korelasi (R) >0,997 dan koefisien determinasi (R2) >0,995. Metode yang telah valid tersebut digunakan untuk pengujian terhadap salah satu sampel cair limbah industri yang bergerak di bidang tekstil yang berada di Kota Bandung. Hasil kandungan kadar Cd pada inlet 0,0010± 0,0002 mg/L dan kandungan kadar Cd outlet 0,0006± 0,0001 mg/L, kandungan kadar Cr inlet 0,0035± 0,0009 mg/L dan kandungan kadar Cr outlet 0,0000± 0,0000 mg/L, serta kandungan kadar Pb inlet 0,0565± 0,0157 mg/L dan kandungan kadar Pb outlet 0,0161± 0,0045 mg/L.

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Development of a Rapid and Simple Digestion Method of Freshwater Sediments for As, Cd, Cr, Cu, Pb, Fe, and Zn Determination by Inductively Coupled Plasma-Optical Emission Spectroscopy (ICP-OES): An Evaluation of Dilute Nitric Acid

Cited by 14 publications

References 30 publications

Atomic spectrometry update – a review of advances in environmental analysis

Atomic spectrometry update – a review of advances in environmental analysis

Activity‐Based Luciferase‐Luciferin Bioluminescence System for Bioimaging Applications

Validasi Metode Analisis Penentuan Kadar Logam Berat Pb, Cd dan Cr Terlarut dalam Limbah Cair Industri Tekstil dengan Metode Inductively Coupled Plasma Optical Emission Spectrometry Prodigy7

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