Table 1 Relative signal response of the organic acids with the method source parameters chosen (gas temperature 285°C, fragmentor 75 V, and capillary 3,000 V) relative to optimum conditions determined for each organic acid
Compound | Relative signal response with method source parameters chosen compared to optimum condition [%] |
|---|---|
Oxalic acid | 100 |
cis-Aconitic acid | |
Maleic acid | |
Glucuronic acid | |
Citric acid | |
Galacturonic acid | |
Gluconic acid | |
Pyruvic acid | |
Tricarballylic acid | 95 |
Glyoxylic acid | 94 |
Malic acid | 92 |
Malonic acid | 91 |
trans-Aconitic acid | |
Methylmalonic acid | |
Succinic acid | 90 |
Glycolic acid | 89 |
Lactic acid | 88 |
Itaconic acid | |
Glutaric acid | 83 |
Fumaric acid | 81 |
2-Hydroxy-2-methylbutyric acid | 77 |
Adipic acid | 73 |
Levulinic acid | |
2-Furoic acid | 72 |