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Who can do it? For an organic chemical product, it is required to detect the cations such as sodium, calcium, iron, potassium and lead, as well as the concentration of fluorine, chlorine and sulfate anions in the product.
SGS SGS testing, Huafa BV testing, Pony testing, CTI testing. . . Wait, many third-party testing companies can do this. These are just regular projects for you. In fact, you can test these yourself. You can use a UV-visible spectrophotometer to test the items listed by the poster (except sodium). Sodium should be tested with AA or ICP.
Atomic absorption or atomic emission can be used for cations, and ion chromatography can be used for anions.
It’s best to be from Liaoning Province! ! ! !
What is the approximate content range of the above impurities? Determine the analysis method and instrument based on the content.
Is there any chemical engineering university in your area? If so, you can just contact them directly. They are relatively experienced and it shouldn’t be a big problem to solve these problems.
Cations such as sodium, calcium, iron, potassium and lead are generally ok to detect by yourself using AAS. If they are trace amounts, you will need to use ICP. You probably need to submit them for testing.; Fluorine, chlorine and sulfate anions are processed using ion chromatography, but ion chromatography is much more expensive than ordinary liquid phase, and many companies do not have it. It is estimated that it must be sent for inspection.
Or for chlorine and sulfate constants, the most primitive titration method is also quite accurate.
According to customer requirements, ICP and ion chromatography are basically required.
It depends on the accuracy you need. If the accuracy is not particularly high, a simple titration analysis will suffice. It can be easily sent to the local Quality and Technical Supervision Bureau, but the charge seems to be relatively high.
This problem has been solved, and ICP and ion chromatography were finally used for detection. Thank you!