For example , chlorophyll A is completely insoluble in glycerol .
By mixing in a small amount of Triton X-100 , a derivative of polyethylene glycol , the chlorophyll becomes highly soluble within the matrix .
For example , chlorophyll A is completely insoluble in glycerol , but by mixing in a small amount of Triton X-100 , a derivative of polyethylene glycol , the chlorophyll becomes highly soluble within the matrix .