Essential knowledge for sales staff of biochemical reagents

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In the sales and promotion of biochemical reagents, we will encounter all kinds of customers, and we will encounter all kinds of strange and weird problems, many of which are even unexpected. Although as a marketer, we don't need to know too much technical knowledge, but knowing some knowledge will make us more convenient in our work.

In my work, I often encounter many sales and purchasing personnel in the biochemical reagent industry who are not related professionals. Therefore, some technical problems encountered in communication cannot be solved. Only to consult a technician and then come to convey it. This way of communication The time cost is relatively high. Although some questions must be asked by technicians, in fact, many common sense questions can be understood by themselves. Here are a few recently encountered:

Relative molecular mass

The relative molecular mass is the mass of the molecule relative to the hydrogen atom or the mass of 1 mol of the substance molecule (or atom). Many people think that the relative molecular mass is just a chemical parameter, and they don't pay much attention to it, but it is very important for the user. This parameter will be used in all operations such as weighing, preparing solution, and measuring content concentration during use.

For example, when weighing EDTA dipotassium, it is necessary to make sure that the relative molecular mass provided is correct. Many EDTA dipotassium and its crystalline hydrates on the Internet have confusing CAS numbers or relative molecular masses.

Solute and solvent

Solute and solvent are actually a very basic concept, but some customers still don't understand it thoroughly. Simply put, the sugar in the aqueous sugar solution is the solute and water is the solvent; the salt in the brine is the solute, and water is the solution. This is of course easy to understand, so it's the same with biochemical reagents.

In EDTA dipotassium anticoagulant, dipotassium EDTA is the solute and the solvent is water. When in use, when the blood collection volume in the blood collection tube increases, the concentration of the EDTA dipotassium solution cannot be increased too much. Every solute has solubility, and when it is saturated, precipitation will be precipitated. This is the same as the sugar in the sugar water. The sugar will crystallize after being oversaturated. How much heparin is needed for the heparin tube, how much water is needed, and why the sodium fluoride solution added to the potassium oxalate and sodium fluoride anticoagulation tube precipitates crystals. These are similar questions.

In carbomer gel, carbomer is a solute, and the solvent can be water, ethanol, propylene glycol, etc. Some people don't understand the specific function of dispersant, which is water and ethanol. The dispersant can be a gas, liquid, solid or colloid, and a solution or suspension is a liquid dispersant.

As a marketing or purchasing personnel, understanding some small issues in daily work can make the work communication process smoother and greatly save communication costs. If you have any other questions, you can also communicate with each other on Desheng official website.