Nitric acid digestion procedure for plant matter analysis with FAAS and MP-AES v1

protocols.io ◽  
2021 ◽  
Author(s):  
Julia Schuurmans
Keyword(s):  
Nitric Acid ◽  
Acid Digestion ◽  
Digestion Procedure ◽  
Plant Matter ◽  
Nitric Acid Digestion

Greening microwave-assisted acid digestion of animal feed samples

2019 ◽  
Vol 11 (46) ◽  
pp. 5857-5863 ◽  
Author(s):  
Marianela Savio ◽  
Lucimar L. Fialho ◽  
Joaquim A. Nóbrega
Keyword(s):  
Nitric Acid ◽  
Green Chemistry ◽  
Animal Feed ◽  
Acid Digestion ◽  
Microwave Assisted ◽  
Nitric Acid Digestion ◽  
Recycle And Reuse ◽  
Feed Samples ◽  
Dilute Nitric Acid

The combination of dilute nitric acid digestion followed by recovery of the acid digests, represents steps towards green chemistry approaches: “reduce the use, recycle and reuse”, strictly following the major green chemistry recommendations.

scholarly journals Bioaccumulation of Some Heavy Metals in Ayre Fish (Sperata Aor Hamilton, 1822), Sediment and Water of Dhaleshwari River in Dry Season

2012 ◽  
Vol 40 (1) ◽  
pp. 147-153 ◽  
Author(s):  
Abu Tweb Abu Ahmed ◽  
Suman Mandal ◽  
Didarul Alam Chowdhury ◽  
Abu Rayhan M Tareq ◽  
M Mizanur Rahman
Keyword(s):  
Heavy Metals ◽  
Nitric Acid ◽  
Atomic Absorption ◽  
Water Samples ◽  
Dry Weight ◽  
Acid Digestion ◽  
Fish Organs ◽  
Flame Atomic Absorption ◽  
Flame Atomic Absorption Spectrophotometer ◽  
Nitric Acid Digestion

The present study was carried out to determine the level of bioaccumulation of some heavy metals in a freshwater fish Ayre (Sperata aor Hamilton, 1822) collected from Rajfulbaria (23°48?56.36? N and 90°14?54.04? E) of  Dhaleshwari river. Four heavy metals, namely chromium (Cr), copper (Cu), lead (Pb), and cadmium (Cd) were selected for this study. Metal concentrations were   determined by Flame Atomic Absorption Spectrophotometer after nitric acid  digestion of samples. The concentrations of accumulated heavy metals in fish were  also compared with the concentrations of metals in the sediments and waters of  that river. The level of bioaccumulations in different organs of S. aor were determined separately and compared among them. Average bioaccumulation levels  in S. aor were Cr: 1.458 mg/kg, Cu: 31.500 mg/kg, Pb: 18.776 mg/kg and Cd:  0.487 mg/kg of dry weight. The levels of heavy metals in sediments were Cr: 27.393 mg/kg, Cu: 37.450 mg/kg, Pb: 15.797 mg/kg and Cd: 2.083 mg/kg, and in water were Cr: 0.130 ppm, Cu: 0.000 ppm, Pb: 0.201 ppm and Cd: 0.001 ppm.The bioaccumulation of these four heavy metals in fish organs, sediment and  water samples were also compared with FAO approved standard levels and other  related studies, and found that the levels of bioaccumulation in the Dhaleshwari river exceeded all the standard levels. DOI: http://dx.doi.org/10.3329/bjz.v40i1.12904 Bangladesh J. Zool. 40(1):147-153, 2012

Comparison of Wet Ashing and Dry Ashing for the Determination of Arsenic in Marine Organisms, Using Methylated Arsenicals for Standards

1974 ◽  
Vol 57 (6) ◽  
pp. 1363-1365 ◽  
Author(s):  
John F Uthe ◽  
Harry C Freeman ◽  
John R Johnston ◽  
Paula Michalik
Keyword(s):  
Total Arsenic ◽  
Acid Digestion ◽  
Fish Tissues ◽  
Digestion Procedure ◽  
Dry Ashing ◽  
Nitric Acid Digestion ◽  
Wet Ashing ◽  
The Difference ◽  
Fish And Shellfish

Abstract A vanadium catalyzed pentoxide-sulfuric acid-nitric acid digestion procedure is described which gave higher values for total arsenic than the AOAC dry ash procedure with fish and shellfish tissue. Recoveries of added methylarsenic compounds were also lower by dry ashing procedures but essentially complete by the new ashing procedure. Arsenic levels in a variety of shellfish and fish tissues as determined by wet ashing averaged 6.3% higher than dry ash values. In lobster hepatopancreas the difference was 13.1% for a large number of samples from a number of sampling areas.

Effect of nitric acid digestion on organic materials and silica in rice husk

1997 ◽  
Vol 7 (8) ◽  
pp. 1505-1509 ◽  
Author(s):  
I. A. Rahman ◽  
J. Ismail ◽  
H. Osman
Keyword(s):  
Nitric Acid ◽  
Rice Husk ◽  
Organic Materials ◽  
Acid Digestion ◽  
Nitric Acid Digestion
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