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분광광도법과 PAN을 이용한 미량 망간(Ⅱ)의 분석에 관한 연구
함용규,한현택,정창웅 순천향대학교 기초과학연구소 1999 순천향자연과학연구 논문집 Vol.5 No.2
A selective and highly sensitive spectrophotometric method has been investigated for the determination of trace manganese(Ⅱ) with 0.1% PAN in 0.001N-HNO₃and 10% potassium sodium tartrate solution. Mn(Ⅱ)-PAN complex was extracted into chloroform and this complex has maximum absorbance at 560㎚. Beer's law applied in the range of 20 ㎍ of Mn(Ⅱ) and the molar absorptivity is 4.6 × 10⁴L/㏖·㎝.
이종화,함용규,박종안 한국환경독성학회 1996 환경독성보건학회지 Vol.11 No.2
In this study, we investgated the uptake capacity of several water plants for heavy metals (lead and cadmium) in soil of rivers where are adjacent to a industrial complex in Chun-An city and in A-San city. We also examined the deposition pattern of heavy metal in plants. The results are as follows: 1. The soil of river in Chun-An city was polluted more serious than that of A-San city. In Chun-An city, mean values of lead and cadmium contents in soil were 26.224±28.037㎍/g, and 0.854±1.127㎍/g, respectively. 2. Water plants examined in this study were Sium suave KITAGAWA, Persicaria thunbergii H. GROSS, Phragmites japonica STEUD, Echinochloa crus-galli var. frumentacea WIGHT and Persicaria hydropiper SPACH. Both metal contents of several water plants distributed in Chun-An city were higher than those in A-San city. In these plants, Sium suave showed the highest uptake capacity for lead and cadmium. The mean values of lead and cadmium contents in Sium suave were 40.957 ±29.577 ㎍/g and 1.930±1.076 ㎍/g, respectively. Persicaria thunbergii also showed a relatively high uptake capacity for both metal. 3. Correlation between metal contents in soil and water plants was high. In both cases of Sium suave and Persicaria thunbergii correlation coefficients were 0.605 and 0.549, respectively. 4. We analyzed lead and cadmium contents in root, stem and leaf of several water plants. Both metals were mostly deposited in root. Much of both metals were also deposited in leaf. From the results, we suggest that Sium suave KITAGAWA and Persicaria thunbergii H. GROSS can be used to reduce heavy metals from industrial waste water.