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A rapid, efficient, and foolproof purge valve for 100% replacement of air in reaction vessels. Automatically controls gas flow and pressure. No special fittings needed. Connect reaction vessel, house-vacuum, and purge gas to the Firestone valve via 10mm O.D. connections. Conserve expensive gases by decreasing flow to almost zero after purging.
法律資訊
Aldrich is a registered trademark of Sigma-Aldrich Co. LLC
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Nature protocols, 3(9), 1527-1534 (2008-09-06)
The membrane-permeant fluorogenic biarsenicals FlAsH-EDT(2) and ReAsH-EDT(2) can be prepared in good yields by a straightforward two-step procedure from the inexpensive precursor dyes fluorescein and resorufin, respectively. Handling of toxic reagents such as arsenic trichloride is minimized so the synthesis
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