Axis BTA 2100D Manual do Operador descarregar pdf (Página 440)

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otherwise it is considered a main peak. The rule of thumb is that the higher the

programmed Tangent Percentage value, the more peaks are considered

tangents. Note that a tangent peak can only be detected following a main peak.

Tangent skimming cannot be done on leading tangents.

Tangent Skimmed Peak

Valley Separated Peaks

Fused tangent peaks are a special case of tangent peaks. Once it is determined

that more than one peak is tangent to a main peak, the tangents themselves

could be valley separated.

Splitting Fused Peaks

Occasionally, the Data Handling software will not detect a shoulder peak,

especially if there is no clear valley between the fused peaks. It will treat all of the

area as one peak, even if you expect two peaks to be present. In this case, you

would use the Split Peak event. This splits one peak into two valley separated

peaks.

Forcing Peaks

Forcing peaks is a way of defining your own baselines. You might use this if,

after adjusting the S/N ratio and peak width, a peak you are interested in is still

not detected. Alternatively, you can use the Forced Peak event as a way of

grouping multiple peaks so that they are reported as one peak (see also the

Group Peak event).

The Forced Peak event causes peak events to be placed at the start and end

times of the event and a baseline is drawn between the two. The apex is taken to

be the highest data point in the time range for the event. This event supersedes

all other peak detection events, so the Peak Width, Signal to Noise Ratio, Inhibit

Integrate, and Tangent Percentage settings have no effect on the forced peak

placement.

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Axis BTA 2100D Manual do Operador Página 440

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