Hi! This is a general question best answered by ChatGPT. I checked that this is the case. ChatGPT answers your question with a list and a brief description of the six main measurement techniques that are currently used in determining the chemical composition of soils. Then you can ask more detailed questions about individual research methods, measurement techniques and methodologies for handling soil samples. It is best to first look for such explanations on the Internet. When the issue of choosing from available methods and techniques appropriate for a given application arises, it may be of interest to a wider group of people involved in the analysis of the chemical composition of soils. However, it should be borne in mind that an analytical chemist is usually not an independent soil researcher, but performs analyzes for soil research, agriculture, environmental protection, etc.
When we refer to the chemical aspects of the soil, we are referring to indicators of its fertility, toxicity and history. Therefore, the evaluation of pH, organic matter, available phosphorus, electrical conductivity is recommended. Apart from that, it is advisable to identify minerals and physical parameters of the soil, such as the texture and stability of aggregates. These are just the basics if is something more precise let us know.