Chapter 4 Examining Chromatogram Data
2.Select the method to use based upon the type of data you are examining, then enter the associated value displayed for the method you select:
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| Higher resolution | Noise Filter | Specify a Correlation Factor of 0 to 1.0. |
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| data | (NF) | Settings from 0.5 to 0.7 yield acceptable |
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| results for most data. A setting close to 1.0 |
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| (May affect | yields a higher degree of noise reduction. |
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| peak | If applying the Noise Filter with a certain |
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| resolution.) | Correlation Factor does not yield the |
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| necessary noise removal, return to the original |
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| trace (see “Returning to the original trace” on |
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| a higher Correlation Factor setting. Applying |
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| the filter more than one time with the same |
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| Correlation Factor setting does not improve |
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| noise removal. |
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| Higher molecular | Gaussian | Specify a Filter Width in data points (odd |
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| weight data | Smooth | integers only). The maximum number of |
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| (SM) | smoothing points is 2001. Points less than 1 |
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| Filter Width from the edge of the spectrum are |
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| (May affect | not smoothed. | |
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| peak |
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| resolution.) |
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