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bingtan123

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[求助] XPS

Note that the element atomic contents of N and W in
GOAP were 4.27% and 3.21%, respectively. That is, the
densities of the introduced amine and phosphotungstic acid
groups were about 2.17 and 0.14 mmol g−1 (calculated using
the W atomic ratio), respectively
通过3.21%怎样算出0.14mmol/g
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