Concentrations of Potassium, Sodium, Magnesium, Calcium, Copper, Zinc, Manganese and Iron in Black and Gray Hairs in Taiwan

Tsai, Yung-Yueh; Wang, Chin-Thin; Chang, Wei-Tun; Wang, Ren-Tse; Huang, Chin‐Wang

doi:10.1248/jhs.46.46

Cited by 10 publications

(10 citation statements)

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“…All containers were first immersed in 8 N HNO 3 for 24 hr, rinsed under deionized distilled water, and dried at ambient temperature before use. Hairs Sampling and Cleaning 18,19) ---Hair samples for this research were all provided by students in residence at a junior college of nursing (Taipei). Their lifestyles and eating habits were all similar.…”

Section: Methodsmentioning

confidence: 99%

“…The procedure for sample cleaning was described elsewhere. 18,19) Samples were immersed in a 65 ml mixture of normal-hexane, ethyl alcohol, and acetone (4 : 2 : 1, v/v) two times. Each immersion lasted 1.5 hr.…”

Section: Methodsmentioning

confidence: 99%

“…The samples were given a final rinse under deionized distilled water three times, filtered with paper dried at ambient temperature, and prepared for the digestion procedure. Hair Digestion 18,19) ---A hair sample was weighed (0.200 ± 0.100 g) and then placed inside a 250 ml microwave digester vessel. Nitric acid 10 ml was added and then heated in a microwave (CEM-MD-2000 microwave digester, U.S.A.) using less than 30% power for 5 min.…”

Section: Methodsmentioning

confidence: 99%

“…AAS Analysis ---With some minor variations in AAS conditions, the instrumentation and procedures (Hitachi Z-8200, Japan, Atomic Absorption Spectrophotometer coupled with Flame Atomizer) were the same as used in our earlier study. 18,19) The external standard method was used for the quantitative determination of metal elements in hair. A series of standard solutions containing the following concentrations of calcium, copper, iron, magnesium, and zinc ions was prepared using deionized distilled water and stock solutions (1000 ppm): 0.00, 0.10, 0.20, 0.40, 1.00, 2.00, and 4.00 µg/ml.…”

Section: Methodsmentioning

confidence: 99%

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Concentrations of Calcium, Copper, Iron, Magnesium, and Zinc in Young Female Hair with Different Body Mass Indexes in Taiwan

Wang¹,

Chang

Jeng³

et al. 2005

JOURNAL OF HEALTH SCIENCE

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An investigation of the metal concentrations of calcium, copper, iron, magnesium, and zinc in three groups of young female hair (n = 180), from women aged between 15 to 19 years, with different body mass indexes (BMI) of BMI < 18, BMI between 18 and 23, and BMI > 24 was performed using atomic absorption spectroscopy (AAS). The hair samples were washed with organic solvent (normal hexane : ethyl alcohol : acetone, v/v, 4 : 2 : 1) to remove the external contents and then digested with a microwave digester. The hair samples were analyzed using a flame atomic absorption spectrophotometer. The BMI < 18 group (n = 45) had the highest concentrations of calcium, copper, iron, magnesium and zinc while the BMI between 18 and 23 group (n = 75) had the second highest concentrations. The BMI > 24 group (n = 60) had the lowest concentrations. Further -more, when we compared the concentrations of calcium, copper, iron, magnesium, and zinc between the groups with BMI < 18 and BMI > 24, there are significant differences (p < 0.05) in the calcium, copper, magnesium, and zinc concentrations between these two groups. The difference was especially significant (p < 0.01) in iron concentration.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Concentrations of Calcium, Copper, Iron, Magnesium, and Zinc in Young Female Hair with Different Body Mass Indexes in Taiwan

Wang¹,

Chang

Jeng³

et al. 2005

JOURNAL OF HEALTH SCIENCE

Self Cite

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show abstract

“…For Hg, a two-stage digestion with HNO 3 Differences between major and trace elements in black and grey hairs from the same individual were found in a study by Tsai et al 90 Grey hairs had lower concentrations of Ca, Cu, Fe, K, Mn, Na, K and Zn than black hairs but differences in Fe, K and Zn failed to reach statistical significance. They concluded that reduction in hair mineral and trace element concentrations could be one of the factors associated with greying of hair.…”

mentioning

confidence: 85%

Atomic spectrometry update. Clinical and biological materials, foods and beverages

Taylor

Branch²,

Halls

et al. 2002

J. Anal. At. Spectrom.

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Dietary Manganese Exposure in the Adult Population in Germany—What Does it Mean in Relation to Health Risks?

Sachse

Kolbaum

Ziegenhagen

et al. 2019

Molecular Nutrition Food Res

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Manganese is both an essential nutrient and a potential neurotoxicant. Therefore, the question arises whether the dietary manganese intake in the German population is on the low or high side. Results from a pilot total diet study in Germany presented here reveal that the average dietary manganese intake in the general population in Germany aged 14–80 years is about 2.8 mg day−1 for a person of 70 kg body weight. This exposure level is within the intake range of 2–5 mg per person and day as recommended by the societies for nutrition in Germany, Austria, and Switzerland. No information on the dietary exposure of children in Germany can be provided so far. Although reliable information on health effects related to oral manganese exposure is limited, there is no indication from the literature that these dietary intake levels are associated with adverse health effects either by manganese deficiency or excess. However, there is limited evidence that manganese taken up as a highly bioavailable bolus, for example, uptake via drinking water or food supplements, could pose a potential risk to human health—particularly in certain subpopulations—when certain intake amounts, which are currently not well defined, are exceeded.

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Concentrations of Potassium, Sodium, Magnesium, Calcium, Copper, Zinc, Manganese and Iron in Black and Gray Hairs in Taiwan

Cited by 10 publications

References 0 publications

Concentrations of Calcium, Copper, Iron, Magnesium, and Zinc in Young Female Hair with Different Body Mass Indexes in Taiwan

Concentrations of Calcium, Copper, Iron, Magnesium, and Zinc in Young Female Hair with Different Body Mass Indexes in Taiwan

Atomic spectrometry update. Clinical and biological materials, foods and beverages

Dietary Manganese Exposure in the Adult Population in Germany—What Does it Mean in Relation to Health Risks?

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