Ultraviolet and visible light (UV-Vis) spectrophotometers are used routinely in raw material receiving inspections and quality confirmation in various industries. In quantitative analyses of solutions, the technician measures the actual sample after first measuring a standard sample, then calculates the sample concentration and makes a pass/fail judgment by comparing the result with the standard value. This huge amount of manual work becomes a burden when several dozen samples are measured each day.
LabSolutions UV-Vis software includes an automatic analysis function that realizes high efficiency in this tedious, timeconsuming work. All processes from measurement of the standard and quantitation samplesto pass/fail judgments can be carried out automatically by using LabSolutions UV-Vis in combination with an autosampler (Teledyne CETAC Technologies).
This article introduces an example of automatic analysis of a food coloring.
The options available with Shimadzu LabSolutions UV-Vis softwareinclude anautomatic analysisfunctionwhichcanbe used to control an autosampler in conjunction with spectra and photometric measurements. The autosamplersthat can be controlled by this program are the ASX-280 and ASX-560 manufactured by Teledyne CETAC Technologies. Fig. 1 shows the appearance of the ASX-560. The maximum number of samples that can be set with the respective models is 120 vials with the ASX-280 and 240 vials with the ASX-560.
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