Package includes one 20mL ampoule with a known concentration of Chlor a Primary Standard in 90% acetone solution

10-950 Spectrophotometric Chlorophyll a Standard

SKU: 10-950
  • Chlorophyll dilution A is provided with this note. The concentration value is guaranteed through October, 2021, but degradation depends on the handling of the standard. Standards must be kept at temperatures below -20° C and in the dark until use. Spectrophotometers should be standardized in subdued light with this solution warmed to room temperature, about 22° C. The determination of chlorophyll-a in aqueous acetone solvent is a sensitive technique. Please pay special attention to the configuration of the spectrophotometer itself. A bandpass of 2.0 nm or less is necessary to properly use this standard.

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