Flame AAS and UV-VIS determination of cobalt, nickel and palladium using the synergetic effect of 2-benzoylpyridine-2-pyridylhydrazone and thiocyanate ions

Zachariadis, George A.

doi:10.1016/s0039-9140(98)00062-9

Cited by 14 publications

(5 citation statements)

References 8 publications

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“…Notable progress has been made in developing capable analytical protocols for detecting, analyzing, and screening heavy metal ions in environmental samples (Figure 1). For instance, conventional flame atomic absorption spectroscopy (FAAS), graphite furnace atomic absorption spectroscopy (GF-AAS), atomic emission spectroscopy (AES), inductively coupled plasma-optical emission spectroscopy (ICP-OES), inductively coupled plasma-mass spectroscopy (ICP-MS), X-ray diffractometry, and X-ray fluorescence [71][72][73][74][75][76][77][78][79][80][81][82][83][84] have been well-developed for heavy metal and trace elements. Nonetheless, some techniques have significant drawbacks and challenges that limit their practical applications.…”

Section: Conventional Heavy Metal Ion Analysis and Trace Element Dete...mentioning

confidence: 99%

Electrochemical and Colorimetric Nanosensors for Detection of Heavy Metal Ions: A Review

Fakayode,

Walgama,

Fernand Narcisse

et al. 2023

Sensors

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Human exposure to acute and chronic levels of heavy metal ions are linked with various health issues, including reduced children’s intelligence quotients, developmental challenges, cancers, hypertension, immune system compromises, cytotoxicity, oxidative cellular damage, and neurological disorders, among other health challenges. The potential environmental HMI contaminations, the biomagnification of heavy metal ions along food chains, and the associated risk factors of heavy metal ions on public health safety are a global concern of top priority. Hence, developing low-cost analytical protocols capable of rapid, selective, sensitive, and accurate detection of heavy metal ions in environmental samples and consumable products is of global public health interest. Conventional flame atomic absorption spectroscopy, graphite furnace atomic absorption spectroscopy, atomic emission spectroscopy, inductively coupled plasma–optical emission spectroscopy, inductively coupled plasma–mass spectroscopy, X-ray diffractometry, and X-ray fluorescence have been well-developed for HMIs and trace element analysis with excellent but varying degrees of sensitivity, selectivity, and accuracy. In addition to high instrumental running and maintenance costs and specialized personnel training, these instruments are not portable, limiting their practicality for on-demand, in situ, field study, or point-of-need HMI detection. Increases in the use of electrochemical and colorimetric techniques for heavy metal ion detections arise because of portable instrumentation, high sensitivity and selectivity, cost-effectiveness, small size requirements, rapidity, and visual detection of colorimetric nanosensors that facilitate on-demand, in situ, and field heavy metal ion detections. This review highlights the new approach to low-cost, rapid, selective, sensitive, and accurate detection of heavy metal ions in ecosystems (soil, water, air) and consumable products. Specifically, the review highlights low-cost, portable, and recent advances in smartphone-operated screen-printed electrodes (SPEs), plastic chip SPES, and carbon fiber paper-based nanosensors for environmental heavy metal ion detection. In addition, the review highlights recent advances in colorimetric nanosensors for heavy metal ion detection requirements. The review provides the advantages of electrochemical and optical nanosensors over the conventional methods of HMI analyses. The review further provides in-depth coverage of the detection of arsenic (As), cadmium (Cd), chromium (Cr), copper (Cu), mercury (Hg), manganese (Mn), nickel (Ni), lead (Pb), and zinc (Zn) ions in the ecosystem, with emphasis on environmental and biological samples. In addition, the review discusses the advantages and challenges of the current electrochemical and colorimetric nanosensors protocol for heavy metal ion detection. It provides insight into the future directions in the use of the electrochemical and colorimetric nanosensors protocol for heavy metal ion detection.

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Section: Conventional Heavy Metal Ion Analysis and Trace Element Dete...mentioning

confidence: 99%

Electrochemical and Colorimetric Nanosensors for Detection of Heavy Metal Ions: A Review

Fakayode,

Walgama,

Fernand Narcisse

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…The heavy-metal concentrations in water should not exceed 2, 5, 15, and 100 µg/L for Cd, Hg, Pb, and Cr, respectively [41,42]. Traditional methods like atomic absorption spectroscopy [43], inductively coupled plasma-atomic emission spectroscopy [44], and inductively coupled plasma-mass spectroscopy [45] for heavy-metal ion detection in wastewater involve complex and time-consuming processes, often requiring sophisticated equipment and trained personnel. In contrast, electrochemical sensors offer a rapid, cost-effective, and highly sensitive approach for the real-time monitoring of heavymetal contaminants [39].…”

Section: Heavy-metal Toxicant Detectionmentioning

confidence: 99%

Electrochemical-Based Biosensor Platforms in Lab-Chip Models for Point-of-Need Toxicant Analysis

Marimuthu,

Krishnan,

Sudhakaran

et al. 2023

Electrochem

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The global hazardous waste management market is expected to reach USD 987.51 million by 2027 at a CAGR of 14.48%. The early detection of corrosive, flammable, and infectious toxicants from natural sources or manmade contaminants from different environments is crucial to ensure the safety and security of the global living system. Even though the emergence of advanced science and technology continuously offers a more comfortable lifestyle, there are two sides of the coin in terms of opportunities and challenges, demanding solutions for greener applications and waste-to-wealth strategies. A modern analytical technique based on an electrochemical approach and microfluidics is one such emerging advanced solution for the early and effective detection of toxicants. This review attempts to highlight the different studies performed in the field of toxicant analysis, especially the fusion of electrochemistry and lab-chip model systems, promising for point-of-need analysis. The contents of this report are organised by classifying the types of toxicants and trends in electrochemical-integrated lab-chip assays that test for heavy-metal ions, food-borne pathogens, pesticides, physiological reactive oxygen/nitrogen species, and microbial metabolites. Future demands in toxicant analysis and possible suggestions in the field of microanalysis-mediated electrochemical (bio)sensing are summarised.

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“…As a result, there is a growing need for efficient methods to detect and quantify these ions. Several techniques have been reported for detecting Co 2+ and Cu 2+ ions, including absorption spectrometry (AAS) [13,14] inductively coupled plasma mass spectrometry (ICP-MS) [15], electrochemistry [16,17], chemosensors [18][19][20], and voltammetry [21]. Optical sensors are the most suitable techniques due to their simplicity, low cost, and ease of use.…”

Section: Introductionmentioning

confidence: 99%

Sensing of Co2+ and Cu2+ Ions Using Dimethylamino-functionalized Poly(azomethine-1,3,4-oxadiazole)s

Homocianu,

Hamciuc,

Hamciuc

2024

J Fluoresc

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The ability of OxT and OxFl azomethines to recognize metal ions in THF solutions was investigated using UV-vis absorption techniques. Various metal ions, including Cd2+, Hg2+, Co2+, Sn2+, Cu2+, Ni2+, Zn2+ and Ag+, were tested. The absorption spectra revealed two distinct π-π* transition bands in the 273–278 nm and 330–346 nm wavelength ranges. Additionally, OxFl displayed an absorption peak at 309 nm, attributed to the fluorene group. Spectral titrations were used to study the fluorescence behavior in the presence of these metal ions. The results showed significant quenching with Co2+ and Cu2+ ions, while other metal ions had minimal effects on the fluorescence intensity. The quenching mechanism was further analyzed using the Stern-Volmer and Lehrer equations, and the binding constants ($${\mathrm{K}}_{\mathrm{b}}^{\mathrm{fl}}$$ K b fl ) were calculated using the Benesi-Hildebrand relations. The results confirm that Co2+ has a 1:2 stoichiometry and Cu2+ has a 1:1 stoichiometry, indicating the strong affinity of OxFl and OxT for these ions. The negative values of ΔG (Gibbs free energy) suggest that complex formation occurs spontaneously at room temperature.

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Flame AAS and UV-VIS determination of cobalt, nickel and palladium using the synergetic effect of 2-benzoylpyridine-2-pyridylhydrazone and thiocyanate ions

Cited by 14 publications

References 8 publications

Electrochemical and Colorimetric Nanosensors for Detection of Heavy Metal Ions: A Review

Electrochemical and Colorimetric Nanosensors for Detection of Heavy Metal Ions: A Review

Electrochemical-Based Biosensor Platforms in Lab-Chip Models for Point-of-Need Toxicant Analysis

Sensing of Co2+ and Cu2+ Ions Using Dimethylamino-functionalized Poly(azomethine-1,3,4-oxadiazole)s

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