Graphite Furnace Atomic Absorption Spectrometry for the Determination of the Chromium Content of Selected U.S. Foods

Miller-Ihli, Nancy J.

doi:10.1006/jfca.1996.9998

Cited by 21 publications

(11 citation statements)

References 6 publications

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“…Similar results of chromium content in food were reported by other authors (4,11,(14)(15)(16)18). The average concentration in fresh meat was 0.039 mg/kg for cattle, 0.101 mg/kg for poultry, 0.074 mg/kg for pigs, and 0.073 mg/kg for game animals.…”

Section: Discussionsupporting

confidence: 89%

“…Operating parameters of graphite furnace were satisfactory to run different kinds of biological samples. Chemical modifiers have been used routinely in the determination of a large number of analytes by ETAAS (1,3,10,12,17,20 The results of the test indicate that the values found in the certified material were on the similar level. The method was validated in terms of the linearity, LOD, LOQ, precision, recovery, and uncertainty (7,8).…”

Section: Discussionmentioning

confidence: 99%

“…There is no generally accepted and stated daily dietary intake for human body (6,11,12,21,25). Both national and European Union legislations do not set any limit of chromium content in foods and feeds (6,11,(14)(15)(16)18). However, the sanitary and veterinary requirements indicate the need for such research.…”

mentioning

confidence: 99%

“…The total concentration and different forms of chromium in foods from various countries varied widely depending on the food type, growing conditions, and processing techniques (1,4,5,11,(14)(15)(16)(17)27).…”

mentioning

confidence: 99%

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Determination of Chromium in Biological Material by Electrothermal Atomic Absorption Spectrometry Method

Nawrocka

Szkoda

2012

Bulletin of the Veterinary Institute in Pulawy

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Procedure for determination of chromium in biological materials by Zeeman graphite furnace atomic absorption spectrometry method using a Perkin-Elmer spectrometer equipped with hollow-cathode lamp at 357.9 nm was developed. The samples of animal tissues, food, and feed were digested in muffle furnace at 450ºC. The ash was dissolved in 1 N hydrochloric acid and the final solution was diluted in 0.2% nitric acid. Magnesium nitrate (1%) was used as a matrix modifier. The method was validated in terms of basic analytical parameters. The mean recoveries of chromium was 84.4% for muscle, 79.0% for canned meat, and 80.2% for feed, and analytical detection limit was 0.003 µg/g. Certified reference materials were used for analytical quality assurance. The proposed analytical procedure is well adapted for monitoring chromium content in food and feedstuffs. Content of total chromium in the tested samples (animal muscles and liver) was low and was situated in the range of 0.031-0.101 mg/kg (muscles) and 0.047-0.052 mg/kg (liver).

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Section: Discussionsupporting

confidence: 89%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Determination of Chromium in Biological Material by Electrothermal Atomic Absorption Spectrometry Method

Nawrocka

Szkoda

2012

Bulletin of the Veterinary Institute in Pulawy

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“…Lipid concentration of the diets and excreta samples was determined by Soxhlet extraction (Soxtec System HT 1043 Extraction unit) according to the standard procedure of analysis (AOAC, 1996). Chromium in the diets and excreta was determined using the dry ashing procedure of Miller-Ihli & Greene (1992). At days 21 and 49 one chick close to the average replicate weight from each pen fed 100% RDAA was selected, weighed and killed by cervical dislocation after 4 h fasting to determine the weights of the breast, legs, abdominal fat pad, liver (with gall bladder), heart, spleen, bursa and total tract.…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary supplementation of licorice extract and a prebiotic on performance and blood metabolites of broilers

Sedghi¹,

Golian²,

Kermanshahi³

et al. 2011

SA J. An. Sci.

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Six hundred Ross 308 male broiler chickens were used to study the effect of licorice extract and the prebiotic, fermacto, on performance, blood metabolites and gastro-intestinal transit time (GTT) of feed in the birds. The birds were fed according to a three phase feeding programme on a starter, grower and finisher diet during the ages of 1 -14 day, 15 -35 days and 35 -49 days of age, respectively. The basic diets during each phase contained either 100 or 95% of recommended digestible amino acid (RDAA) concentrations. The two basic starter diets were divided into five treatment diets: No supplement (control); and supplemented with 2.0 g fermacto/kg; and 2.0 (high); 1.0 (medium) and 0.5 (low) g licorice extract/kg diet. In the grower diets half the levels of these supplements were included, while the two finisher diets were fed without containing any of the experimental supplements. There was not a significant difference in body weight, feed intake and feed conversion ratio between the birds fed the control and the diets supplemented with the prebiotic or the different levels of licorice. However, birds receiving diets containing licorice extract had lighter abdominal fat pads compared to those fed the prebiotic or control diets. Blood cholesterol concentrations decreased significantly in birds receiving the high level of licorice in their starter and grower diets as compared to the control. The GTT of feed in the birds fed diets containing the prebiotic or licorice extract did not differ from that of the birds in the control. A 5% reduction in dietary RDAA concentration caused an increase in feed conversion ratio of chickens on the starter and grower diets and for the total duration of the experiment. ________________________________________________________________________________

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Evaluation of measurement data for Cd, Cr and Pb in certain uncontaminated foodstuffs published in surveys: analytical quality vs. uncertainty of measurements

et al. 2006

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Graphite Furnace Atomic Absorption Spectrometry for the Determination of the Chromium Content of Selected U.S. Foods

Cited by 21 publications

References 6 publications

Determination of Chromium in Biological Material by Electrothermal Atomic Absorption Spectrometry Method

Determination of Chromium in Biological Material by Electrothermal Atomic Absorption Spectrometry Method

Effect of dietary supplementation of licorice extract and a prebiotic on performance and blood metabolites of broilers

Evaluation of measurement data for Cd, Cr and Pb in certain uncontaminated foodstuffs published in surveys: analytical quality vs. uncertainty of measurements

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