In order to ensure the best possible quality of your samples, you should always follow the given instructions on how to take samples. Good quality samples are the basis for reliable analyses and results and poor samples may jeopardize your research. Our laboratory staff is willing to guide you and answer to your questions. Equipment for plant and soil samples, such as secateurs and augers, as well as tree measuring equipment can be found in storage room BOR 119.
Find out what analyseses you want to be taken and where -> take enough samples (g or ml).
Store the samples adequately before pretreatment (in room temperature, in fridge or in freezer).
Pretreatment of smaples (drying, grinding, sieving, etc.).
Store the samples adequately after pretreatment.
Use adequate equipment for taking samples
Use adequate and clean equipment such as ones made of stainless steel. Do not use rusty, painted or galvanised equipment. Clean the equipment always prior to taking samples. Use clean cloth, ethanol or water depending in the sample.
For element analyses -> dry sample 10g.
If you need additional analyses such as pH, conductivity, dry mass, ash content -> dry sample 50g or 50ml.
Store dry samples in paper sachets or bags and wet samples in a plastic bags or plastic jars.
When you bring samples from outdoors, dry them in +45C (sample bags open) or put them in a fridge or freezer.
Marking the samples
Make a sample list in Excel with running numbering. Laboratory will use the same running numbering for preparing the analyses. Mark the sample sachets/bags/jars with running numbering clearly with permanent marker (water resistant).
May you have any questions regarding samples, please ask the laboratory staff!