Equipment

Turner Designs 10AU Benchtop and Field Fluorometer

Fluorometer image The Turner Designs 10AU fluorometer is the industry standard for fluorometric analyses and has the added flexibility of being a field-compatible instrument. This field-portable instrument can be set up for continuous-flow monitoring or discrete sample analyses. Internal data logging, automatic range changing, and unmatched stability make the 10AU the instrument of choice for field or bench-top studies. A variety of compounds can be easily measured on-site using application-specific optical filters available from Turner Designs. The S-LAB has configured the 10-AU with a specialized optical kit that permits fluorometric determination of chlorophyll a in the presence of chlorophyll b and pheopigments based on the method by Welschmeyer (1994). The 10-AU has a published detection limit of 0.025 ug/L in the lowest calibration range for extracted chlorophyll a using the EPA Method 445.0.

References

Arar, E.J., and Collins, G.B. 1997. In vitro determination of chlorophyll a and pheophytin a in marine and freshwater algae by fluorescence: National Exposure Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency Method 445.01, 22 p.

Welschmeyer, N. 1994. Fluorometric analysis of Chlorophyll a in the presence of Chlorophyll b and pheopigments. Limnol. Oceanogr. 39:1985-1992.