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Table 5 Linearity of calibration curve, LOD, and LOQ of pesticides

From: Monitoring heavy metals, residual agricultural chemicals and sulfites in traditional herbal decoctions

Pesticides

Regression equation

R2

cLOD mg/kg)

dLOQ (mg/kg)

p,p'-DDD

yb = 374844.59xa-1258.40

1.0000

0.005

0.016

p,p'-DDE

y = 389791.58x-2526.36

1.0000

0.007

0.021

o,p'-DDT

y = 229348.05x-12990.11

0.9995

0.065

0.196

p,p'-DDT

y = 254190.24x-16171.13

0.9996

0.045

0.136

Bifenthrin

y = 85403.71x-1585.67

0.9999

0.030

0.091

Chlorfenapyr

y = 393884.32x-6112.32

1.0000

0.018

0.053

Chlorothalonil

y = 475988.22x-13117.75

0.9999

0.031

0.094

Cyhalothrin

y = 273407.08x-11711.69

0.9998

0.042

0.129

Cypermethrin

y = 146439.59x-7670.04

0.9995

0.060

0.181

Dieldrin

y = 474247.23x-4668.10

1.0000

0.007

0.020

α-Endosulfan

y = 435974.27x-2681.56

1.0000

0.011

0.034

β-Endosulfan

y = 411096.17x-3877.12

1.0000

0.015

0.045

Endosulfan Sulfate

y = 330896.35x-6530.19

0.9999

0.029

0.089

Fenarimol

y = 353478.59x-15843.60

0.9996

0.052

0.159

Fenpropathrin

y = 102000.65x-3871.97

0.9998

0.042

0.127

Hexaconazole

y = 189804.39x-19048.19

0.9999

0.033

0.101

Isoprothiolane

y = 102841.63x-4375.38

0.9996

0.051

0.154

Kresoxim-methyl

y = 82893.05x-1863.47

0.9999

0.026

0.080

Methoxychlor

y = 174878.92x-5581.06

0.9998

0.055

0.166

Pendimethalin

y = 95284.06x-766.05

0.9999

0.038

0.115

Procymidone

y = 48823.89x + 1832.31

0.9999

0.077

0.234

Tetradifon

y = 305112.99x-9039.28

0.9998

0.050

0.151

Thifluzamide

y = 290010.38x-5561.51

1.0000

0.012

0.035

Tolylfluanid

y = 269855.77x-12090.08

0.9999

0.022

0.067

Triadimefon

y = 190757.09x-3508.23

1.0000

0.022

0.066

Triflumizole

y = 142356.47x-8256.12

0.9992

0.097

0.293

Cyprodinil

y = 205.34x-2.68

1.0000

0.045

0.138

Iprobenfos

y = 1540.77x-171.09

0.9999

0.074

0.225

Napropamide

y = 51.25x-1.22

1.0000

0.036

0.109

Tebuconazole

y = 80.37x-8.08

1.0000

0.025

0.076

Tebufenpyrad

y = 121.95x-2.61

1.0000

0.044

0.132

Triadimenol

y = 91.36x-5.56

0.9999

0.054

0.162

Triazophos

y = 1540.77x-217.58

1.0000

0.003

0.009

  1. ay = peak area, bx = concentration of the respective compounds, cLOD = 3.3 × δ/S, dLOQ =10 × δ/S (δ : standard deviation, S : the individual slope in calibration curves)