What is the co-spotting method?

> back to TLC FAQ

For analytical chromatography, co-spotting is frequently used for similar polarity products.
This consists to apply on the same spot, the starting material and reaction mixture as shown by the image below.

TLC co-spotting for analytical chromatography

Discover our TLC offer

Glass-backed

Aluminum-backed

Analytical TLC

Bare Silica
Reversed-phase
Normal Phase
Other Sorbents

Analytical HPTLC

Bare Silica

Plastic-backed

Analytical TLC

Bare Silica
Other Sorbents