Harnstoff-15N2 ≥10 atom % 15N, ≥96% (CP)
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Protonated Nitrogen Structure in 15N-Labeled Model Coal
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Urea-15N2 15N = 10atom , = 96 CP 2067-80-3
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Urea-15N2, 10 atom % 15N, 490970-25G, SIGMA-ALDRICH
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Urea-15N2 15N 98atom , 99 CP 2067-80-3
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Protonated Nitrogen Structure in 15N-Labeled Model Coal
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Urea-15N2 ≥10 atom % 15N, ≥96% (CP), Sigma-Aldr - 나비엠알오