Almost any mixture of compounds can at least be separated using either Thin-Layer Chromatography (TLC) or Paper Chromatography. These techniques are used to identify compounds such as sugars and antibiotics and can even determine impurities and related substances down to ~0.5%.
We maintain our capability to perform these classical non-instrumental analyses, even though, in many cases, they have been largely surpassed by instrumental applications.
![TLC](https://www.butterworth-labs.co.uk/wp-content/uploads/2021/01/IMG_0706-Croped-1024x705.png)