Allelopathic effects are beneficial or unfavorable effects on other plants or microorganisms in the environment due to metabolic activities of plants or microorganisms. Chemical substances with allelopathic effects become allelopathic substances. Studies have shown that certain allelochemicals can reduce plant quality, increase plant diseases and insect pests, and create continuous cropping obstacles. Among them, phenolic acids are the main substances that cause continuous cropping obstacles in plants. The autotoxic effect of phenolic acids affects plant membrane system, photosynthesis, enzyme activity, soil microbial activity, soil physical and chemical properties, and endogenous hormones, etc., which affect plant growth. Produce inhibition.

Detection Indicator:

Salicylic acid, gentisic acid, catechol, vanillin, syringaldehyde, o-coumaric acid, p-coumaric acid, cinnamic acid, 3,4-dihydroxybenzoic acid, kaempferol, catechin, rutin , Vanillin, vanillic acid, p-hydroxybenzoic acid, ferulic acid, coumaric acid, syringic acid, benzoic acid, phthalic acid, chlorogenic acid, caffeic acid, quinic acid, gallic acid, protocatechuic acid , Erucic acid

Case Atlas

Sample Name: 2 Vial #: 26

Sample Name	2	Injection Vial	26
Data File	20200814.wiff	Injection Volume	1.00
Acquisition Date	8/14/2020 4:23:43 PM	Algorithm Used	MQ4
Acquisition Method	20200807-you ji suan.dam	Sample Type	Unknown
Instrument Name	Triple Quad 4500	Result Table	20200814-you ji suan-2
Sample ID		Dilution Factor	1.00
Sample Comment		Weight to Volume	N/A

Approved By (Date and Initials): .

	Compound Name:	kui ning suan-1 (190.9 / 85.0)
	Expected RT:	0.96
	Actual RT:	0.99
	Equation:	y = 1082.71792 x + 1230.78082 (r = 0.99635) (weighting: None)
	Area Counts:	6.473e4
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	2,5.er qiang ji ben jia suan-2 (153.0 / 108.0)
	Expected RT:	2.83
	Actual RT:	2.78
	Equation:	y = 2917.43703 x + -25558.50994 (r = 0.99768) (weighting: None)
	Area Counts:	3.416e3
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	ding xiang quan-1 (181.0 / 166.0)
	Expected RT:	3.92
	Actual RT:	3.93
	Equation:	y = 1791.33746 x + -23833.91302 (r = 0.99604) (weighting: None)
	Area Counts:	6.782e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	ben jia suan-1 (121.0 / 121.0)
	Expected RT:	4.92
	Actual RT:	4.95
	Equation:	y = 676.08543 x + 5.58495e4 (r = 0.99301) (weighting: None)
	Area Counts:	5.119e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	ding xiang suan-1 (197.0 / 121.0)
	Expected RT:	3.56
	Actual RT:	3.58
	Equation:	y = 366.13629 x + -4036.58578 (r = 0.99596) (weighting: None)
	Area Counts:	1.784e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	dui qiang ji ben jia suan-1 (137.1 / 93.1)
	Expected RT:	2.94
	Actual RT:	2.98
	Equation:	y = 11611.45755 x + -20106.42523 (r = 0.99749) (weighting: None)
	Area Counts:	3.630e7
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	yuan er cha suan-1 (153.0 / 109.0)
	Expected RT:	1.94
	Actual RT:	1.94
	Equation:	y = 11390.60460 x + -6.58072e4 (r = 0.99690) (weighting: None)
	Area Counts:	3.374e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	ling ben er jia suan-1 (165.0 / 77.0)
	Expected RT:	3.37
	Actual RT:	3.38
	Equation:	y = 7248.10756 x + -8.10700e4 (r = 0.99653) (weighting: None)
	Area Counts:	7.929e6
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	xiang cao suan-2 (167.0 / 108.0)
	Expected RT:	3.37
	Actual RT:	3.41
	Equation:	y = 383.57357 x + -993.79649 (r = 0.99482) (weighting: None)
	Area Counts:	3.675e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	lu ding-1 (609.1 / 299.9)
	Expected RT:	4.47
	Actual RT:	4.47
	Equation:	y = 5555.51383 x + -29196.37419 (r = 0.99863) (weighting: None)
	Area Counts:	3.312e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	dui xiang dou suan-1 (163.0 / 119.0)
	Expected RT:	4.08
	Actual RT:	4.08
	Equation:	y = 6758.26546 x + -5150.25625 (r = 0.99573) (weighting: None)
	Area Counts:	5.316e7
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	SA-1 (137.0 / 92.9)
	Expected RT:	5.09
	Actual RT:	5.12
	Equation:	y = 25406.03031 x + -8.27665e4 (r = 0.99806) (weighting: None)
	Area Counts:	9.852e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	a wei suan-1 (193.0 / 133.7)
	Expected RT:	4.25
	Actual RT:	4.25
	Equation:	y = 5318.63183 x + -4.37358e4 (r = 0.99653) (weighting: None)
	Area Counts:	1.287e7
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	shan nai fen-1 (285.0 / 238.9)
	Expected RT:	6.44
	Actual RT:	6.45
	Equation:	y = 560.48362 x + -5235.67356 (r = 0.99769) (weighting: None)
	Area Counts:	9.760e2
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	mo shi zi suan-2 (169.0 / 81.1)
	Expected RT:	1.29
	Actual RT:	1.37
	Equation:	y = 303.25148 x + -1819.50366 (r = 0.99744) (weighting: None)
	Area Counts:	1.112e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	lv yuan suan-1 (353.1 / 191.0)
	Expected RT:	2.81
	Actual RT:	2.82
	Equation:	y = 4812.00556 x + -28765.63084 (r = 0.99759) (weighting: None)
	Area Counts:	9.468e3
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	ka fei suan-2 (179.0 / 133.8)
	Expected RT:	3.32
	Actual RT:	3.33
	Equation:	y = 3128.88673 x + -12379.27196 (r = 0.99817) (weighting: None)
	Area Counts:	1.556e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	jie zi suan-1 (223.0 / 164.0)
	Expected RT:	4.23
	Actual RT:	4.23
	Equation:	y = 3776.86629 x + -29027.17583 (r = 0.99456) (weighting: None)
	Area Counts:	1.785e5
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	lin ben er fen-1 (108.9 / 108.9)
	Expected RT:	2.67
	Actual RT:	2.70
	Equation:	y = 7654.43801 x + -6.15303e4 (r = 0.99827) (weighting: None)
	Area Counts:	4.294e3
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	er cha su-1 (289.0 / 108.9)
	Expected RT:	2.26
	Actual RT:	N/A
	Equation:	y = 711.48906 x + -9933.21802 (r = 0.99591) (weighting: None)
	Area Counts:	N/A
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	xiang lan su-1 (151.0 / 135.9)
	Expected RT:	3.76
	Actual RT:	3.80
	Equation:	y = 3051.44744 x + -3.02586e4 (r = 0.99648) (weighting: None)
	Area Counts:	3.076e6
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	lin xiang dou suan-1 (162.9 / 119.0)
	Expected RT:	4.90
	Actual RT:	N/A
	Equation:	y = 29201.47016 x + 1.13366e5 (r = 0.99548) (weighting: None)
	Area Counts:	N/A
	ISTD Area Counts:	N/A
	Amount:

	Compound Name:	rou gui suan-2 (147.0 / 102.9)
	Expected RT:	7.71
	Actual RT:	N/A
	Equation:	y = -0.10585 x + 640.68678 (r = 0.12890) (weighting: None)
	Area Counts:	N/A
	ISTD Area Counts:	N/A
	Amount: