지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2011.6
- 수록면
- 387 - 393 (7page)
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초록· 키워드
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We analyzed the particle size distributions of three commercially available Devarda’s alloy (DA) products, tested the nitrate recoveries of each particle size category, and examined the amounts of DA required for 100% recovery by varying NO<sub>3</sub>?N concentration from 0.5 to 10 mg. We observed that use of DA coarser than 200 mesh resulted in poor analytical recovery (< 80%). While the tested alloys were considered to be fine enough (>90% of the particles were less than 100 mesh), the recovery dramatically declined from 80% to 10% in a high concentration range (4 to 10 mg N). Satisfactory recovery was obtained by increasing the amount of finer DA (less than 300 or 450 mesh). However, there was no quantitative relationship between the amount of fine DA and nitrate recovered. Generally, the amount of nitrate reduced per unit DA decreased as the recovery efficiency declined. These results suggest that a sufficient amount of DA must be determined based on particle size distribution, and that treatment of at least two levels of DA and comparison of the subsequent change in nitrate recovery is required for soils containing high levels of nitrate. In addition, further studies are encouraged to account for the observed stoichiometric dis-equivalence of recovered nitrate N per unit mass of DA.
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참고문헌 (16)
참고문헌 신청
Baker, A.S / 1967 / Colorimetric determination of nitrate in soil and plant extracts with brucine / J. Agric. Food Chem 15:802~806
Bergstrom, L / 1987 / Nitrate leaching and drainage from annual and perennial crops in tile drained plots and lysimmeters / J. Envrion. Qual 16:11~18
Bremner, J.M / 1965 / Inorganic forms of nitrogen / ASA :1179~1237
Dancer, W.S / 1975 / Leaching losses of ammonium and nitrate in reclamation of sand spoils in corn well / J. Envrion. Qual 4:499~504
Heney, R.L. / 2001 / A rapid procedure for estimating nitrogen mineralization in manured soil / Biol. Fertil. Soil 33:100~104
Bergstrom, L / 1987 / Nitrate leaching and drainage from annual and perennial crops in tile drained plots and lysimmeters / J. Envrion. Qual 16:11~18
Bremner, J.M / 1965 / Inorganic forms of nitrogen / ASA :1179~1237
Dancer, W.S / 1975 / Leaching losses of ammonium and nitrate in reclamation of sand spoils in corn well / J. Envrion. Qual 4:499~504
Heney, R.L. / 2001 / A rapid procedure for estimating nitrogen mineralization in manured soil / Biol. Fertil. Soil 33:100~104
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UCI(KEPA) : I410-ECN-0101-2014-521-000824761