• 한국식품영양학회지
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• 제18권3호
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• pp.254-264
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• 2005

This study was conducted to estimate the contents of heavy metals 'Hg, Cd, Pb, As, Zn, Cu, Cr, Mn' in some vegetables which were produced in Korea. The levels of heavy metals were determined using a mercury analyzer, an ICP(inductively coupled plasma spectrometer) and an AAS(atomic absorption spectrophotometer) after wet digestion. The values of heavy metals "mean(mini.~maxi.)" ppm(mg/kg) in some vegetables(raw of perilla leaf, chard, small water dropwort, water dropwort, kale, bud of aralia, pumpkin(round type) and pumpkin(long type) were as follows : Hg : 0.0021(0.0006~0.0054)mg/kg, Cd : 0.0035(ND*~0.0377)mg/kg, Pb : 0.0191(0.0023~0.0928)mg/kg, As : 0.0757(ND~0.5294)mg/kg, Zn : 2.6299(0.4478~6.8567)mg/kg, Cu : 1.0261(0.2046~8.9417)mg/kg, Cr : 0.1535 (0.0240~0.4982)mg/kg, Mn : 3.2476(0.3283~9.8280)mg/kg. This results showed that Mn was generally simillar to previous reports and Cd, Hg, Pb were lower than other reseaches, but As was little higher or Zn, Cu, Cr were higher than the levels of those reported contents in some vegetables on domestic supermarkets in Korea, Although tolerable limit of Hg and Cd is not in a regulation of WHO/FAO, these mean levels(Pb, As, Zn, Cu) are lower than recommended levels of WHO/FAO, Pb "0.1~2.0" mg/kg, As "1.0" mg/kg, Zn "5.0" mg/kg and Cu "0.1~50"mg/kg from vegetables in 'the tolerable contents of food' by the FAO/WHO, therefor some vegetables has set to evaluate their safeties.

• 동아시아식생활학회지
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• 제15권4호
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• pp.465-474
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• 2005

This study was conducted to estimate the contents of heavy metals 'mercury(Hg), cadmium(Cd), lead(Pb), arsenic(As), zinc(Zn), copper(Cu), chrome(Cr) and manganese(Mn)' in root vegetables which were produced in Korea. The levels of heavy metals were determined using a mercury analyzer, an ICP(inductively coupled plasma spectrometer) and an AAS(atomic absorption spectrophotometer) after wet digestion. The values of heavy metals 'mean(minimum-maximum)' mg/kg(ppm) in root vegetables (radish, turnip, carrot, ginger, edible burdock, taro, Chinese yam, east indian lotus) were as follows ; Hg : 0.0019(0.0002${\~}$0.0062), Cd : 0.0088(ND${\~}$0.0402), Pb : 0.021(ND${\~}$0.1070), As : 0.0401(ND${\~}$0.1732), Zn : 1.865(0.4186${\~}$6.9319), Cu : 0.648 (0.1826${\~}$4.0172), Cr : 0.121(0.0132${\~}$1.2030), and Mn : 2.730(0.0477${\~}$10.0468) mg/kg. These results showed that Hg were generally similar to and Cd was lower but Ph, As, Zn, Co, Mn were little higher than the levels of those reported contents in root vegetables on retail markets in Korea. Although the tolerable limit of Cd and Hg is not set in a regulation of WHO/FAO, the tested mean levels(Pb, As, Zn, Cu) were lower than the regulated ones of WHO/FAO, Pb '0.1-2.0', As '1.0', Zn '5.0', and Cu 0.1${\~}$50 mg/kg from vegetables. Therefore, root vegetables sold in the retail markets were evaluated as safe in terns of the heavy metal contents.

• 한국식품과학회지
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• 제35권5호
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• pp.812-817
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• 2003

본 연구는 우리나라 식품공전의 다류제품 중 중금속 함량을 파악하여 우리나라 및 외국의 모니터링, 기준과 비교함으로써 안전성을 평가하고자 하였다. 총 200건의 다류제품에 대하여 ICP, AAS 및 Mercury analyzer를 이용하여 측정한 납 등 중금속 평균함량은 Hg: 0.003 mg/kg, Pb: 0.03 mg/kg, Cd: 0.007 mg/kg, As: 0.006 mg/kg, Cu: 2.73 mg/kg, Mn: 66.91 mg/kg, Zn: 4.54 mg/kg, A1: 85.53 mg/kg으로 외국에서 보고된 결과와 유사하거나 낮은 수준이었다. 또한 우리나라 국민이 다류를 통해 섭취하는 납, 카드뮴, 수은 등 유해중금속의 섭취량은 FAO/WHO에서 설정한 PTWI의 $0.1{\sim}0.2%$ 이하로 매우 낮았다.

• 한국식품과학회지
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• 제36권3호
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• pp.375-378
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• 2004

우리나라에서 유통되는 꽃게, 기타게, 꽃새우, 기타새우, 닭새우, 갯가재 등 58건 갑각류에 대하여 수은 함량은 mercury analyzer로, 납, 카드뮴, 비소함량은 습식분해 후 ICP 또는 AAS로 분석한 결과, 갑각류 중 중금속 함량 최소-최대(평균), mg/kgl은 수은 0.004-28(0.06), 납 ND-0.31(0.03), 카드뮴 0.003-0.92(0.15), As 0.01-35.9(6.64)이었다. 본 연구결과는 다른나라에서 보고된 갑각류중 중금속 함량과 유사한 수준이었다. 우리나라 국민이 갑각류 섭취에 의한 수은, 납, 카드뮴의 주간섭취량 은 FAO/WHO에서 정한 잠정주간섭취허용량의 약 1% 미만인 것으로 나타났다.

• 분석과학
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• 제14권3호
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• pp.253-258
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• 2001

본 연구에서는 우리나라 생활폐기물 대형소각시설(200톤/일 이상) 9개소에서 발생되는 소각재중, 바닥재에 대한 금속류의 용출시험 및 함량시험을 수행하여 유해특성과 유해잠재성을 고찰하였다. 용출시험은 우리나라 폐기물공정시험방법에 따라 수행하였으며, 함량시험은 수은(Hg)의 경우 열분해금아말감원자흡광분광기(TDA-AAS)로 측정하고, 납 등 9개 원소는 US-EPASW-846 3050B방법으로 전처리하고 불꽃원자흡광분광기(FAAS) 또는 유도결합플라스마원자발광분광기(ICP-AES)로 측정하였다. 용출시험 결과, 납과 구리가 주 오염물질이었다. 함량시험결과, 철이 가장 높은 농도로 나타났고 농도는 Fe>Zn>Cu>Mn>Pb>Cr>As>Cd>Hg 순으로 나타났으며, 각 소각시설마다 농도순이 평균적으로는 같았다.

• 한국식품과학회지
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• 제37권3호
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• pp.329-333
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• 2005

본 연구는 국내 유통 중인 인삼 및 인삼제품류 8종 100건에 대하여 중금속 함량을 조사 평가하고자 수행하였다. 유도결합 플라즈마분광기(ICP), 원자흡광광도계(AAS) 및 수은분석기 둥을 이용하여 납, 카드뮴 등 중금속을 측정하였다. 인삼(n=30) 중 납 등 중금속 함량은 다음과 같았다[min-mak(mean), 단위 mg/kg]. Hg은 0.002-0.02(0.007), Pb은 0.018-0.39(0.106), Cd은 0.004-0.413(0.106), As는 불검출 -0.094(0.013), Cu는 0.24-5.5(3.2), Mn 3.18-50.4(20.09), Zn은 0.76-44.27(13.42). 또한 인삼제품류 (n=70)에 대한 중금속 함량은 다음과 같았다[min-max(mean), 단위 mg/kg]. Hg은 0.0001-0.002(0.001), Pb은 0.001-0.133(0.017), Cd는 불검출 -0.181(0.008), Cu는 불검출 -1.1(0.13), Mn 0.73-30.15(1.61), Zn은 0.02-13.42(1.02). 본 연구결과, 우리나라 국민의 인삼 및 인삼제품류를 통한 수은, 납, 카드뮴 섭취량은 FAO/WHO에서 설정한 잠정주간섭취허용량의 0.003%, 0.01%, 0.02%로 매우 낮게 나타났다.

• 한국식품영양과학회지
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• 제27권3호
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• pp.413-418
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• 1998

There are several types of salts that classifed into raw salts(Chunil salt, Saeng salt), purified salts (NaCl reagent grade, Hanju salt) and processed salts(Gueun salt, Saeng kum, Bamboo salt) in Korea. Their major element is NaCl but raw salt from sea water contains other minerals such as K, Mg and S. Mineral contents of the various kinds of salt analyzed with ICP-AES and AAS were different, especially on the contents of K, Mg and Ca. Chunil salt was abundant in Ca(1,037ppm), K(3,707ppm), Mg(10,266ppm) and S(7,459ppm), and salt water from the Chunil salt contained small amounts of Pb, Al, Cr and Hg. Processed salts contained high levels of Ca, K, Mg and Fe. Especially, high levels of K, P, Fe and Ge were detected in bamboo salt. Purified salts showed regular crystal form and raw salts exhibited irregular crystal form under the SEM. The processed salts were not crystal form, but fused and irregular round form.

• 한국환경과학회지
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• 제8권5호
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• pp.607-610
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• 1999

The odor removal of landfill site leachate was carried out using pyroligenous liquid. The constituent elements of pyroligenous liquid and leachate were also analysed, employing Atomic Absorption Spectroscopy(AAS). Before order removal, the heavy metal ions such as Pb, Zn, Cu, Mn, Fe and Ni, in pyroligenous liquid were detected with ultra trace level. However, in this liquid, other metal ions such as As, Hg and Cd were not observed. The optimum condition for removing odor fromthe leachate was observed in 15 times dilution of pyroligenous liquid. Also, the degree of outlet odor was 1. Furthermore, the concentration of odor constituent compounds, e.g. $H_2S, NH_3, NH_2$ and $CO_2$ in the leachate was remarkably reduced. Finally, water quality of the leachate was improved.

• 한국환경보건학회지
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• 제47권1호
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• pp.64-77
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• 2021

Objective: Biological monitoring of trace elements in human blood samples has become an important indicator of the health environment. The purpose of this study was to detect and evaluate multiple metal items in blood samples based on ICP-MS, to perform comparative evaluation with the existing analysis method, and to develop and verify a new method. Methods: 100 μL of whole blood from 80 healthy subjects was used to analyze ten metals (Sb, tAs, Cd, Pb, Mn, Hg, Mo, Ni, Se, Tl) using ICP-MS. Verification of the analysis method included calculation of linearity, accuracy, precision and detection limits. In addition, a comparative test with the conventional graphite furnace atomic absorption spectroscopy (GF-AAS) method was performed. In the case of Pb, Cd, and Hg in whole blood, cross-analysis between Pb, Cd, and Hg analysis methods was performed to confirm the difference between the existing method and the new method (ICP-MS). Results: The coefficient of determination (R2) was 0.999 or higher in seven items and 0.995 or higher in three items. The Pb result showed that Pearson's correlation coefficient was very high at 0.983, and the intraclass correlation coefficient was 0.966. The Cd result showed that Pearson's correlation coefficient was 0.917 between the existing method and the new analysis concentration value. Its intraclass correlation coefficient was 0.960, and there was no significant difference between the two groups. Hg had a low correlation at 0.687, and the intraclass correlation coefficient was 0.761, which was lower than that of Pb and Cd. The intra-day and inter-day accuracy of Pd and Cd were satisfactory, but Hg did not meet the criteria for both accuracy and precision when compared with the conventional analysis method. Conclusion: This study can be meaningful in that it proposes a more efficient and feasible analysis method by verifying a blood heavy metal concentration experiment using multiple simultaneous analyses. All samples were processed and analyzed using the new ICP-MS. It was confirmed that the agreement between the two methods was very high, with the agreement between the current and new methods being 0.769 to 0.998. This study proposes an efficient simultaneous methodology capable of analyzing multiple elements with small samples. In the future, studies of various applications and the reliability of ICP-MS analysis methods are required, and research on the verification of accurate, precise, and continuous analysis methods is required.

• 분석과학
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• 제13권2호
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• pp.151-157
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• 2000

수소화물 발생법-원자흡수 분광계를 이용한 비소의 분석에서 금속이온의 은폐제로 사용되는 L-cysteine, thiourea, KI/ascorbic acid 등의 예비 환원제와 염산, 질산, 황산 및 이들의 1:1 혼산의 종류 및 농도가 비소의 분석에 미치는 영향을 비교 연구하였다. 대부분의 예비 환원제의 경우 3-5M 이상의 고농도 산 용액에서 비소에 대한 높은 흡괌도를 나타냈으나, 0.1M 이하의 낮은 산 용액에서는 L-cysteine을 제외하고는 극히 저조한 흡광도를 나타내었다. 질산 산성용액에서는 흡광도 신호의 불안정성이 심하였다. 방해물질로서 $Cr^{6+}$, $Br^{5+}$ 이온의 방해영향이 크게 관찰되었지만, 이때 예비 환원제는 수소화물 생성을 크게 증가시켰다.