Chromatography Toolkit
Features & FAQ's

Features

FAQ's

• How good is the Peak Detection algorithm?
• Can I manually integrate peaks?
• What if I am NOT a LabVIEW programmer?
• What if I AM a LabVIEW programmer?

Features
Download the manual or view screen shots on the demo page for more information.

• Simple configuration

• Real time data acquisition

• Real time peak detection

• Calibraiton factors and named peaks

• Optional report printout

• Add on module for curve fitting

• Autosampler support

• Post analysis reprocessing

• Data import from other data collection systems

• Simultaneous data collection from up to 4 chromatographs at once

• Customization through LabVIEW

How good is the Peak Detection algorithm?

The algorithm is capable of dealing with curved baselines, fused peaks, and shoulders typical in chromatographic applications.  Adjustable parameters are used to control the sensitivity of the peak detection algorithm in order to ignore peaks that are too small or too large.  Peaks can be integrated valley-to-valley, or to the baseline.  The peak detection algorithm is based on a second derivative method.  The manual contains a discussion of all of the adjustable parameters in order to integrate the desired peaks.

Can I manually integrate peaks?
Manual peak integration is not necessary since the automatic peak integration can be adjusted to include all necessary peaks, and exclude all unnecessary peaks.

What if I am NOT a LabVIEW programmer?
The Chromatography Toolkit can be used out of the box as a complete chromatography system with no additional programming. It provides data acquisition from a several data acquisition options, real time graphs, peak information, and data storage and retrieval. Data can be acquired from up to 4 instruments at once.

What if I AM a LabVIEW programmer?
The flexibility of LabVIEW allows the turnkey system to be modified by the end user to provide functions specific for that lab or pilot plant. For example, the peak areas found by the peak detection VI could be used to provide real time feedback control for a distillation column.

Also, the "Peak Detection.VI" can be used independently of the Chromatography Toolkit in a users own custom application. Examples are provided for processing ASCII data files.  Data can be sent to the VI in "chunks" to provide real time processing, or in one large batch for post analysis. This greatly extends the capabilities of peak detection beyond the simple routines provided by National Instruments that require a flat baseline and well resolved peaks.  Typically, about 25-50 data points are needed to define a peak accurately.

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