- P-ISSN 1225-0163
- E-ISSN 2288-8985
플라스틱을 황산으로 탄화시키고 질산으로 산화 분해한 후 과잉의 황산과 질산을 증발·건조에 의해 제거한다. 이때 침전된 납화합물 (PbSO4)의 SO4-2 이온을 염산산성에서 HI에 의해 H2S로 환원하여 휘발시킨 다음 납을 용해한후 AAS와 ICP로 측정하였다. PVC-Pb 표준시료 (690∼34610㎎/㎏)를 이용하여 재현성 실험을 하였으며 예상농도에 대비하여 99.9% 이상의 정확성을 보였다. 정밀성은 AAS는 99.8%, ICP는 99.9%로 비슷하였다.
was decomposed with nitric acid after being carbonized by sulfuric acid. Then excess sulfuric acid and nitric acid was removed by evaporating and drying. Precipitated SO4-2 ion of PbSO4 was resolved itself into H2S by HI in hydrochloric acid and was volatilized. Then Pb+2 was dissolved and was measured by AAS and ICP. The test for reproducibility using PVC-Pb standard material (690-34610mg/kg) was conducted and the accuracy was more than 99.9% compared with the estimated concentration. The precision by AAS was 99.8% and that of ICP was 99.9%.
(2000) "Directive 2000/53/EC of The European Parliament and of the Council", EU
(2002) "Directive 2002/95/EC Restriction of the use of certain Hazardous Substance in electric and electronic equipment", EU
BS EN 1122 Plastics. Determination of cadmium. Wet decomposition method.,
ISO 6101-2 Rubber - Determination of metal content - Flame atomic absorption spectrometric method,
ASTM D3335 Standard Test Method for Low Concentrations of Lead, Cadmium, and Cobalt in Paint by Atomic Absorption Spectroscopy,
(1960) Symposium on Microchemistry,
Methods of Decomposition in Inorganic Analysis, CRC Press Inc