Refreshment (make-up) water is used in recirculating aquaculture systems (RAS) mainly to purge off-flavors, to add alkalinity and sometimes for temperature control.
For the injection-port derivatization, the best conditions were at 280 °C, 1 min purge-off, and a 1 1 sample:derivatization reagent ratio (v/v) using N-methyl-N- trimethylsilyl trifluoroacetamide (MSTFA):pyridiN-methyl-N- trimethylsilyl trifluoroacetamide
Diluted samples (1/100 v/v, in n-pentane) of 1 μL were injected manually at 250°C, and in the splitless mode with a 1 minute purge-off due to the small amount of oil partially utilized for biological tests.
The operating conditions were as follows: initial temperature of 45°C (1 min), increase to 150°C at 20°C min−1, holding for 5 min, then an increase to 280°C at 4°C min−1 for 20 min, injector temperature 250°C, carrier gas H2, column linear velocity (μ = 45 cm s−1), detector temperature 300°C, N2 makeup gas, splitless mode operation, 1 min purge-off time, and 1 μL injection volume.
So if you happen to be listening to a South Korean radio broadcast, or you say something like "Gee, I hear North Korea started the Korean War," your entire family can be purged — taken off to camps, and never heard from again.
[Page C4.] Criticism of AOL Chairman Widens Analysts and investors are criticizing Stephen M. Case, the chairman of AOL Time Warner, saying the company's management would be better off purged of executives from the former America Online.
Now, however, after Mr. Pittman resigned under pressure last week, Mr. Case, AOL Time Warner's chairman, has been deprived of a lightning rod for shareholders' ire and has become the target of a growing chorus of criticism from analysts and investors saying the company's management might be better off purged of executives from AOL altogether, including him.
McNally wrote Stone a letter of gratitude and congratulations in the off-season, after he departed in a purge of high-salaried veterans.
During the Stalinist purge of the 1930s, entire families in her building were hauled off to Siberian camps and almost certain death.
