High-performance liquid chromatographic determination of nitrogen-15 to nitrogen-14 plus nitrogen-15 ammonium ion ratios in sea water for isotope dilution experiments
1995 ◽
Vol 61
(3)
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pp. 231-237
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1982 ◽
Vol 231
(1)
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pp. 129-136
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1986 ◽
Vol 9
(10)
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pp. 2143-2151
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1990 ◽
Vol 504
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pp. 359-367
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1993 ◽
Vol 633
(1-2)
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pp. 129-133
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1991 ◽
Vol 572
(1-2)
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pp. 312-316
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2005 ◽
Vol 1077
(1)
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pp. 49-56
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1985 ◽
Vol 339
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pp. 359-365
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