Metrohm NIRS XDS MultiVial Analyzer - Manual (Page 33)

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• 19mm vial: 15mm spot size
• 25mm vial: 17.5mm spot size
• 29mm vial: 17.5mm spot size
As a rule, a large spot size is preferable for large samples. This provides as much sample viewing area
as possible for a good cross-sectional area of the sample. The default spot size is 17.25mm.