有机化学
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Amethyst
J&K
Strem
Accela
SERVA
TCI
TRC
Apollo
Aldrich
纯度
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(97%-Co)
(99.8%-Rb)
(99.8+%-Rb)
(99.9%-Ba, Sr<.03%)
(99.9%-Cs)
(99.9%-Sr)
(99.95%-Ca)
(99.99%-Li)
(99.99%-Na)
(99.995%-Sr)
(99.997%-K)
(99.999%-Ba)
(99.999%-Ca)
(99.999%-Li)
(99%-Rb)
(99+%-Cs)
(99+%-Rb)
＞98%
>99%
~14 N in H2O, 98 atom % 15N
~3 N in H2O, 98 atom % 15N
≥90%, ≥99.5% (metals basis)
≥98%
≥99.5% trace metals basis
≥99.9% trace metals basis
28% NH3 in H2O, ≥99.99% trace metals basis
45 wt. % in H2O
50 wt. % in H2O, 99.9% trace metals basis
50% in H2O
85
85%
85+%
94%
95%
96%
97%
97+%
98.5%
98%
99.0%(T)
99.5%
99.5+%
99.9%
99.95% trace metals basis
99.98% trace metals basis
99.99%
99.99% trace metals basis
99.995% trace metals basis
99.999% trace metals basis
99%
99% (trace metals analysis)
99+%
ACS reagent, ≥95.0%
ACS reagent, ≥99.0%
ACS reagent, anhydrous, ≥99.5%, powder or granules
ACS reagent, chelometric standard, 99.95-100.05% dry basis
anhydrous, powder, 99.99% trace metals basis
anhydrous, powder, 99.999% trace metals basis
beads, 16-60 mesh, reagent grade, 97%
extent of labeling: 20 wt. % loading (dry basis), matrix carbon, wet support
min. 95%
min. 97%
min. 98%
moistened with water, 10-20% Pd basis (based on dry substance)
N/A
pellets, semiconductor grade, 99.99% trace metals basis
powder, ≤50 μm particle size, 98%
powder, reagent grade, ≥98%
reagent grade, ≥98%, powder, ?325 mesh
reagent grade, 95%
reagent grade, 97%, flakes
reagent grade, 98%
ReagentPlus?, 99%
semiconductor grade, pellets, 99.99% trace metals basis (Purity excludes sodium
Sodium hydroxide-coated silica, 8-20?mesh
technical grade
technical grade, 95%
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