Details

Autor(en) / Beteiligte

• Lee, Yunkyoung
• Myoungsun Shin
• Yukyong Jung
• Changwon Jang
• 김범철

Titel

Comparison of Phytoplankton Chlorophyll-a Extracted with Different Solvents

Ist Teil von

• 생태와 환경, 2008, 41(4), , pp.485-489

Ort / Verlag

한국하천호수학회

Erscheinungsjahr

2008

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• Algal chlorophyll-a is commonly determined by spectro-photometric method using 90% acetone as solvents. However, acetone has low extraction efficiency without grinding filters, and DMF (dimethyl formamide) was tested for the compatibility with acetone. Chlorophyll-a concentration was determined for samples from 5 reservoirs of different trophic states and phytoplankton composition, using acetone extraction with grinding and DMF without grinding. Chlorophyll-a measured by DMF and Acetone did not show a significant difference when using trichromatic method of UNESCO and Lorenzen, and therefore, DMF can substitute acetone. But when acidification method was applied, they showed significant difference of 8%. It can be concluded that DMF can extract chlorophylls more effectively without grinding and it can be a better alternative for the standard extraction solvent. KCI Citation Count: 1