Determination of Six Eugenol Residues in Aquatic Products by Gas Chromatography-Orbitrap Mass Spectrometry

Table 3

Linearity, LODs, and LOQs of six eugenols.

Compound	Linear range (μg/mL)	Substrate	Linear equation	R^2	LOD (μg/kg)	LOQ (μg/kg)
Eugenol	0.003–0.1	Pomfret	Y = 6.456 × 10^7X + 5.571 × 10^4	0.9991	5	15
		Prawn	Y = 7.460 × 10^7X + 6.102 × 10^4	0.9993
		Crab	Y = 8.906 × 10^7X + 4.201 × 10^4	0.9987
Methyl eugenol	0.002–0.1	Pomfret	Y = 6.058 × 10^7X + 1.545 × 10^3	0.9984	3	10
		Prawn	Y = 5.042 × 10^7X + 3.711 × 10^3	0.9981
		Crab	Y = 7.011 × 10^7X + 6.143 × 10^3	0.9990
Isoeugenol	0.004–0.1	Pomfret	Y = 4.141 × 10^7X + 3.957 × 10^4	0.9981	10	20
		Prawn	Y = 4.969 × 10^7X + 1.745 × 10^4	0.9974
		Crab	Y = 5.590 × 10^7X + 3.002 × 10^4	0.9987
Methyl isoeugenol	0.001–0.1	Pomfret	Y = 1.183 × 10^8X + 9.997 × 10^3	0.9976	2	5
		Prawn	Y = 1.689 × 10^8X + 1.151 × 10^3	0.9991
		Crab	Y = 1.301 × 10^8X + 3.147 × 10^3	0.9977
Eugenyl acetate	0.001–0.1	Pomfret	Y = 1.489 × 10^8X + 6.276 × 10^3	0.9998	2	5
		Prawn	Y = 2.322 × 10^8X + 4.307 × 10^3	0.9980
		Crab	Y = 1.786 × 10^8X + 4.112 × 10^3	0.9983
Acetyl isoeugenol	0.001–0.1	Pomfret	Y = 1.727 × 10^8X + 4.174 × 10^3	0.9989	2	5
		Prawn	Y = 2.172 × 10^8X + 3.014 × 10^3	0.9986
		Crab	Y = 1.986 × 10^8X + 5.751 × 10^3	0.9971