Flow injection analysis channel length

When we examine the time distribution of the recorded signal (Fig. 4.18c), it is apparent that the peak width at its base in this system is approximately twice as long as the time interval between the sample injection and the moment when the signal starts to rise. In a simple stopped-flow system this time distribution does not present a problem because a new cycle is initiated only when the next sample is injected. The timer for a two-channel parallel stop analysis must, however, run in a fixed go-stop-go cycle, because while one sample zone is being injected (or flushed out) the other is stored, and if the length of the storage period is not always the same, the analyzer will not yield reproducible results-unless, of... 

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