• Journal of Sericultural and Entomological Science
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• v.28 no.2
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• pp.61-64
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• 1986

This study was carried out to identify Hue, Value and Chroma (H, V/C) of silk fabric dyed with several kinds of Vegetable Dyes according to Munsell renotation system and to disclose the colour fastness of dyed silk fabric against washing and light. The Hue of dyed silk fabric which was in colour of yellow or yellow red, was differentially altered by kinds of Vegetable Dyes, the Value and Chroma (V/C) of that was uniformally lowered by treatments of mordants after dyeing. The Colour fastness to washing and light of dyed silk fabric was improved by mordanting with coppor sulfate or ferrous sulfate, as compared with unmordanting.

• Journal of Food Hygiene and Safety
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• v.20 no.2
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• pp.83-88
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• 2005

This study was conducted to estimate the contents of heavy metals including lead, cadmium, zinc, copper as well as iron status(serum iron, total iron binding capacity, feritin etc)in blood samples of middle school students(n=300). The contents of heavy metals were determined using the GF-AAS (Graphite furnace Atomic Absorption Spectrophotometer). The microwave digestion method and dilution method were compared. The dilution method showed the better recovery and detection limit than microwave digestion method. The values of toxic metals in whloe blood of boys & girls were 3.46 & 3.05 for Pb,0.063 & 0.065 for Cd respectively (ug/dL). Also the values of trace metals in serum of boys & girls were 105.9 & 92.6 for Zn, 98.3 & 99.0 for Cu respectively (ug/dL). The prevalence of iron deficiency was $7.5\%$ in 146 boys and $14.3\%$ in 156 girls. The mean values of lead in girls were higher in iron deficiency, iron deficiency anemia and anemia groups than normal group. The mean values of lead and zinc were higher in boys compared to those in girls(P<0.05), the mean values of cadmium and copper in boys were similar to those in girls. Our results of toxic metals such as Pb & Cd showed lower to CDC's(Centers for Disease Control) blood lead levels of concern for children, 10 ug/dL.