全部
-
≥95%
≥96%
≥97.0% (AT)
≥97%
≥99.99% trace metals basis
95.0%(T)
95%
96.0%(T)
97.0%(GC)
97.0%(T)
97%
98.0%(GC)
98.0%(LC)
98.0%(T)
98%
99.0%(T)
99.5%
99.8%
99.999% trace metals basis
99%
anhydrous, beads, ?10?mesh, 99.999% trace metals basis
N/A
technical grade, 90%