Measurements of phytoplankton of sub-nanomolar chlorophyll concentrations by a modified double-modulation fluorometer

Title:

Measurements of phytoplankton of sub-nanomolar chlorophyll concentrations by a modified double-modulation fluorometer

Creator:

Dijkman, N., Kaftan, D., Trtílek, M., and Nedbal, L.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:4667b693-9adb-41b8-9cf4-fd14cbdb6ae2
uuid:4667b693-9adb-41b8-9cf4-fd14cbdb6ae2
issn:0300-3604
doi:10.1023/A:1007160106113

Subject:

fluorescence, Phaeodactylum tricornutum, Pseudococcomyxa sp., and Synechococcus marinus

Type:

model:article and TEXT

Format:

bez média and svazek

Description:

A modification of the double-modulation fluorometer is described that allows measuring very dilute phytoplankton samples. The high sensitivity is achieved by increasing the sample volume and by collecting the fluorescence from the large volume by an integrating sphere. The sensitivity of the instrument increased approximately proportionally to the volume of the sample. A further improvement of the sensitivity was achieved by replacing the PIN photodiode of the earlier versions by a photomultiplier. The instrument was used to measure fluorescence induction, F0 and Fm parameters, and QA- reoxidation kinetics at concentrations at and below 100 pM chlorophyll. and N. Dijkman ... [et al.].

Language:

Multiple languages

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Coverage:

249-254

Source:

Photosynthetica | 1999 Volume:37 | Number:2

Harvested from:

CDK

Metadata only:

false