グレード＆純度BioReagent?BioReagent grade — tested suitable for life-science and molecular-biology use. Use for cell culture, assays, and biochemical work needing biological compatibility.
Available potassium refers to the potassium in soil that is readily absorbed and utilized by plants, serving as one of the key indicators for assessing soil potassium supply. Timely determination and understanding of the content and variations of soil available potassium play a significant role in evaluating soil fertility and guiding potassium fertilizer application. This kit provides a simple, convenient, and rapid method for detecting soil available potassium content, suitable for soil samples. The principle involves the reaction of potassium ions with sodium tetraphenylboron to form insoluble white potassium tetraphenylboron precipitate. The turbidity generated is proportional to the potassium ion concentration within a certain range, allowing the determination of soil available potassium content by measuring the turbidity at 420 nm.
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What does BioReagent mean?
BioReagent indicates that the product has been processed and tested for biological and biochemical applications. Specifications may include endotoxin limits, microbial controls, sterility, low DNase/RNase/protease activity, and verified biological activity where relevant.
How should this product be stored?
Store at 2–8 °C, protected from light. The material is light-sensitive — keep it in its original opaque or amber container.
How is this product shipped?
This product ships chilled on wet ice. Unpack on arrival and transfer it to the storage condition stated above.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.
Products are supplied to verified businesses, institutions, and qualified professionals for research and development use only. Not for use in humans, animals, diagnosis, or therapy.
