Optimization of an acid digestion procedure for the determination of Hg, As, Sb, Pb and Cd in fish muscle tissue

Mohammed, Elisabeth; Mohammed, Terry; Mohammed, Azad

doi:10.1016/j.mex.2017.11.006

Cited by 68 publications

(31 citation statements)

References 4 publications

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“…Furthermore, the addition of acid to the solution can contribute towards igniting and preventing precipitation and absorption on the glass wall. The solubility of mineral seemed to possess a positive relation to the length of exposure to nitric acid [45]. The results showed that the type of solvent significantly altered the test results (p < 0.05) (Table 13).…”

Section: Mineral Analysismentioning

confidence: 94%

Validation of Mineral (Fe, Zn, and Cu) Analysis Methods in Carbohydrate, Protein and Fat-Rich Samples Using Microwave Digestion Method

2020

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Destruction process using both dry and wet conditions serves as a significant step in mineral quantification. Wet destruction using microwave-assisted digestion refers to the standard method of AOAC (2012); in this work, we modified the destruction procedures provided in the microwave digestion manual book, including temperature, reagent volume (HNO3 and H2O2), and length of destruction. The experiment works aimed (1) to validate the procedures in destruction process using microwave digestion; (2) to quantify Fe, Zn and Cu in various food matrices (canned peas, canned fish, full cream powdered milk) using a validated method. The method was evaluated according to linearity, accuracy, precision, absolute and relative LOD, LOQ, and intra-reproducibility. Measurement of Fe, Zn and Cu were considered to have a satisfying accuracy at a range of 80-115%, with a good precision value (% RSD < 2/3 CV Horwitz), while regression curves R 2 > 0.995. The results showed that data collected from the modified method was not significantly different compared to those from the AOAC method. The currently developed method also fulfilled the acceptability requirements for laboratory analysis.

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Section: Mineral Analysismentioning

confidence: 94%

Validation of Mineral (Fe, Zn, and Cu) Analysis Methods in Carbohydrate, Protein and Fat-Rich Samples Using Microwave Digestion Method

2020

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“…Pork tissues samples were microwave-digested using a mixture of 65% nitric acid, 37% hydrochloric acid and 30% hydrogen peroxide-ACS grade, (Sigma-Aldrich, USA) (Mohammed et al, 2017). Minerals including calcium (Ca), copper (Cu), iron (Fe), potassium (K), magnesium (Mg), manganese (Mn), sodium (Na), phosphorus (P), sulphur (S), and zinc (Zn) in the digested samples were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES).…”

Section: Proximate and Mineral Composition Of Pork Tissuesmentioning

confidence: 99%

Black soldier fly larvae as a sustainable animal feed ingredient in Kenya

Chia

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Table of contents Chapter 1 General introduction Chapter 2 Insects for sustainable animal feed: inclusive business models involving smallholder farmers Chapter 3 Knowledge and willingness of smallholder farmers in Kenya to pay for insect-based feeds Chapter 4 Effects of waste stream combinations from brewing industry on performance of black soldier fly Hermetia illucens (Diptera: Stratiomyidae) Chapter 5 Threshold temperatures and thermal requirements of black soldier fly Hermetia illucens: Implications for mass production Chapter 6 Nutritional composition of black soldier fly larvae feeding on agro-industrial by-products Chapter 7 Effect of dietary replacement of fishmeal by insect meal on growth performance, blood profiles and economics of growing pigs in Kenya Chapter 8 Black soldier fly larval meal in feed enhances growth performance, carcass yield and meat quality of finishing pigs Chapter 9 General Discussion Summary Appendices Acknowledgements

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“…The chemicals used in the digestion were analytically pure and ultra-pure water was used throughout the study [14]. For 10 years, microwave digestion systems have been used for sample extractions [15][16][17]. This technique is preferred because of its advantages such as rapid digestion, less contamination probability, and less acid consumption [16].…”

Section: Sample Handling and Analysis Of Water And Fish Tissuesmentioning

confidence: 99%

Bioaccumulation of Trace Metals in Wastewater-Fed Aquaculture: A Case Study in Turkey

Kâti̇p¹

2019

Pol. J. Environ. Stud.

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Optimization of an acid digestion procedure for the determination of Hg, As, Sb, Pb and Cd in fish muscle tissue

Abstract: Graphical abstract

Cited by 68 publications

References 4 publications

Validation of Mineral (Fe, Zn, and Cu) Analysis Methods in Carbohydrate, Protein and Fat-Rich Samples Using Microwave Digestion Method

Validation of Mineral (Fe, Zn, and Cu) Analysis Methods in Carbohydrate, Protein and Fat-Rich Samples Using Microwave Digestion Method

Black soldier fly larvae as a sustainable animal feed ingredient in Kenya

Bioaccumulation of Trace Metals in Wastewater-Fed Aquaculture: A Case Study in Turkey

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