有机化学
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膦酸/次膦酸盐
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Amethyst
J&K
Fluorochem
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Key Organics
Matrix
TCI
Aldrich
Sigma
纯度
全部
-
>95%
>96%
>97%
≥80%
≥95.0%
≥95.0% (HPLC)
≥95.0% (NMR)
≥95%
≥96%
≥97.0%
≥97.0% (HPLC)
≥97.0% (T)
≥97.5% (T)
≥97%
≥97% (enzymatic)
≥97% (H-NMR)
≥98.0% (AT)
≥98.0% (CHN)
≥98.0% (gravimetric)
≥98.0% (N)
≥98.0% (T)
≥98%
≥99.9% trace metals basis
0.5?M in THF
0.98
1.0?M in H2O
50% in propylene carbonate
65-70% P2O5 basis
75.0%(GC)
85.0%(LC)
85.0%(T)
85%
90.0%(LC)
90.0%(T)
90%
94.0%(LC)
95.0%(LC&T)
95.0%(T)
95%
95%%+
95+%
96%
97.0%(N)
97.0%(N&T)
97.0%(T)
97%
98 atom % D
98.0%(LC)
98.0%(LC&E)
98.0%(LC&N)
98.0%(LC&T)
98.0%(N)
98.0%(N&T)
98.0%(T)
98.0%(T&LC)
98%
98%, complies for IR spectroscopy
98%%+
99.0%(LC)
99.0%(T)
99%
AldrichCPR
contains ~10% diethyl ether as stabilizer
crystalline, +200?mesh, 96%
Loading: 0.02mmol per tablet
min. 95%
min. 97%
min. 98%
N/A
practical grade
technical
technical, ≥90% (31P-NMR)
technical, 70-75% in H2O (T)
Type I, ≥96% (HPLC)
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2.5g
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2g
300ug
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500ml
50g
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5mg
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