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Printed in the Republic of Korea

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(2002. 9. 13 )

Quantitative Analysis of Microcystins, Cyanobacterial Toxins in Soyang Lake

Jungae Lee, Soyoung Lee, and Dongjin Pyo*

Department of chemistry, Kangwon National University, Chuncheon 200-701, Korea (Received September 13, 2002)

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ABSTRACT It is very difficult to analyze the microcystins, cyanobacterial toxins quantitatively since it exists in a trace level in lakes. In this paper, two different analytical methods were tried to analyze the microcystins, cyanobacterial toxins quantitatively in water samples collected in Soyang lake. The first method was solid phase extraction method fol- lowed by High Performance Liquid Chromatography(HPLC), and the second method was Enzyme-Linked Immu- nosorbent Assay(ELISA) using the monoclonal antibody of microcystin.

Keywords: Cyanobacterial toxin, Microcystin, Quantitative analysis

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Flow rate (mL/min) Microcystin RR

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2.5 1.55

3.0 0.74

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Sample HPLC (pg/mL) ELISA (pg/mL)

March 12th 2002 93.3 100

April 8th 2002 111.7 150.8

May 13th 2002 205 235.8

June 19th 2002 241.7 257.7

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August 20th 2002 ND ND

Fig. 4. Chromatograms of each month in Soyang Lake (2002) (A) March 12th, (B) April 8th, (C) May 13th, (D) June 19th, (E) July 12th, (F) August 20 th.

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1. Francis, G. Nature (London), 1878, 18, 11.

2. Schwimmer, M.; Schwimmer, D., In medical as-pects of phycology; Jackson, D. F., Ed.; Algae, Man and Environment, syracuse Univ. Press: 1968, 358, 279.

3. Botes, D. P.; Viljoen, C. C.; Kruger, M.; Wessels, P. L.;

Williams, D. H. Toxicon. 1982, 20, 1037.

4. Botes, D. P.; Tainman, A. A.; Wessels, P. L.; Vil-joen, C. C.; Kruger, M.; Will-iams, D. H.; San-tikarn, S.;

Smith, R. J.; Hammond, S. J. J. Chem. Soc., Perkin Trans. 1984, 1, 2311.

5. Sandstrm, A.; Glemarec, C.; Meriluoto, J. A. O.; Eriks- son, J. E.; Chattopadhyaya, J. Toxicon. 1990, 28, 535.

6. Yoshizawa, S.; Matsushima, R.; Watanabe, M. F.;

Harada, K. I.; Ichihara, A.; Carmichael, W. W.; Fujiki, H. J. Cancer Res. Clin. Oncol. 1990, 116, 609.

7. Matsushima, R.; Yoshizawa, S.; Watanabe, M. F.; Harada, K. I.; Furusawa, M.; Carmichael, W. W.; Fujiki, H. Biochem.

Biophys. Res. Commun. 1990, 171, 867.

8. Wang, H. B.; Zhu, H. G. Biomed. Environ. Sci. 1996, 9, 46.

9. Falconer, I. R.; Humpage, A. R. Phycologia. 1996, 35(6), 74.

10. Cho, K. S.; Kim, B. C.; Heo, W. M.; Cho, S. J. Korean Journal of Limnology. 1989, 22(3), 179.

11. Carmichael, W. W. J. Appl Bacteriol. 1992, 72, 445.

Fig. 5. Calibration curve of ELISA.

Fig. 6. Correlation between HPLC and ELISA.

수치

Fig. 1. Structures of Microcystins.
Fig. 2. Quantitative analysis of microcystin using ODS cartridge and HPLC.
Table 1. The amount of microcystin RR adsorbed on ODS car- car-tridge using various flow rates (unit: peak area)
Fig. 4. Chromatograms of each month in Soyang Lake (2002) (A) March 12th, (B) April 8th, (C) May 13th, (D) June 19th, (E) July 12th, (F) August 20 th.
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