Radovi, No. iz.br. 9, 2006.
Stručni rad
FOLIAR ANALYSES OF SAMPLES FROM INTENSIVE MONITORING PLOTS AND INTER-LABORATORY TESTING WITHIN THE FRAMEWORK OF ICP FORESTS PROGRAMME
Tamara Jakovljević
; Šumarski institut, Jastrebarsko
Sažetak
Within the framework of International Co-operative Programme on Assessment and
Monitoring of Air Pollution Effects on Forests (ICP Forests), research and chemical analyses
of plant material has been carried out in Croatia on seven intensive monitoring plots (Level
II) with typical forest communities. In order to monitor the reliability of methods of laboratory
analyses, as well as to ensure operational quality of analytical methods that can be applied
in plant material analysis, Forest Foliar Co–ordinating Centre in Vienna organizes
each year Inter-laboratory testing on samples prepared in laboratories of countries taking
part in ICP Forests. In 2004, Forest Research Institute, Jastrebarsko prepared leaves of common
beech as reference sample for all European laboratories. Samples were tested for the
following required elements: sulphur, nitrogen, phosphorous, potassium, calcium and magnesium,
and the following optional elements: zinc, manganese, iron and carbon. Obtained
results are evidence of high quality of performance of the laboratory of Forest Research Institute
in Jastrebarsko. This type of laboratory testing is in line with the requirements of international
standards and facilitate testing of new methods introduced into laboratory procedure.
New method of determining nitrogen on elementary analyser CNS 2000 was tested
in chemical laboratory of the Forest Research Institute, Jastrebarsko and the results have
been checked by inter-laboratory testing, which confirmed the validity of the method.
Ključne riječi
ICP Forests; intensive monitoring; inter-laboratory monitoring; reference sample; quality of the laboratory
Hrčak ID:
26058
URI
Datum izdavanja:
24.9.2006.
Posjeta: 1.145 *