The proposed method was also tested for the determination of the
target analytes in dairy products. Five different samples (whole milk,
milk without lactose and cacao, strawberry and vanilla semi-skimmed
milkshakes) were analyzed. Table 4 shows the results obtained for the
C-CAD and ELSD. Glucosewas detected in whole milk with andwithout
lactose although the concentration in the lactose-free was higher. Only
milkshakes presented others sugars different of the glucose and lactose
contained in the milk samples. Three milkshakes were analyzed, the
strawberry milkshake contains higher concentration of sucrose and glucose
and, the cacao milkshake presents higher concentration of fructose.
The maltotriose was not detected in the dairy products analyzed. In the
case ofwhole milkwithout lactose and cacao semi-skimmed milkshake,
the label indicates that the concentration of lactose is lower of 0.1 g L−1.
The sensitivity of the proposed method allows the determination of the
label concentration, but the dilution necessary in the pre-treatment of
sample hinders the quantification, being the final concentration of the
lactose lower than 0.001 g L−1.