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| Content Provider | Springer Nature Link |
|---|---|
| Author | Schilling, Petra Powilleit, Martin Uhlig, Steffen |
| Copyright Year | 2006 |
| Abstract | A chlorophyll-a interlaboratory comparison was carried out to compare three different analytical chlorophyll-a determination methods: a German standard DIN 38412-16, a method of the HELCOM-Combine-Manual and the different “in-house” methods of participating laboratories. Eleven laboratories took part. They had to determinate the chlorophyll-a and phaeopigment content in two seawater samples taken from the Baltic Sea. Furthermore, for the assessment three different statistical evaluation methods were applied: the German standard DIN 38402-42, the Q-method combined with an estimator according to Huber and the Cofino-method. All analytical methods were appropriate to determine the chlorophyll-a content. The relative standard deviations of reproducibility for chlorophyll-a varied between 12 and 31%. None of the analytical methods was appropriate to determine the phaeopigment content quantitatively. The relative standard deviations of reproducibility for phaeopigments ranged between 87 and 158%. The applied statistical evaluation methods resulted in different assessments. The Q-method combined with an estimator according to Huber proved to be the best qualified method. |
| Starting Page | 462 |
| Ending Page | 469 |
| Page Count | 8 |
| File Format | |
| ISSN | 09491775 |
| Journal | Accreditation and Quality Assurance |
| Volume Number | 11 |
| Issue Number | 8-9 |
| e-ISSN | 14320517 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2006-06-07 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chlorophyll-a Cofino-method Interlaboratory comparison Marine monitoring Phaeopigments Marketing Ecotoxicology Commercial Law Biochemistry Food Science Analytical Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Instrumentation Chemical Engineering Safety, Risk, Reliability and Quality |
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