Effects of Root Cooling on Plant Growth and Fruit Quality of Cocktail Tomato during Two Consecutive Seasons

Table 1

MRM parameters for organic acids.

Compound	Precursor ion (m/z)	Product ion (m/z)	Cone voltage (V)	Collision energy (V)
Malic acid	132.9	71.0	22	16
	132.9	114.95	22	12
^13C4 malic acid	137.0	119.0	28	10
Ascorbic acid	175.02	87.0	24	16
	175.02	115.0	24	12
Dehydroascorbic acid	173.0	71.0	24	16
Citric acid	191.02	87.0	32	16
	191.02	111.0	32	12

The 1^st row of malic, ascorbic, and citric acid is the quantifier mass transition, and the 2^nd row is the qualifier mass transition used for quantification and compound confirmation, respectively.