A distributor of a nutritional supplement wanted to get a beverage they were marketing tested for red dye#40 which is permitted in food and check for possible non-permitted red dyes as well. EMSL was able to quantify the red dye#40 using HPLC/uv/vis and determine that it was the only red dye present by scanning LC/MS in the supplement giving the distributor an increased level of confidence in the marketed product.