Degradation of five pesticide residues in Chinese wolfberry using high-energy electron beam irradiation

Jie ZHU; Shen TIAN; Xiaoyu YAO; Wei HE

doi:10.11889/j.1000-3436.2024-0119

Journal of Radiation Research and Radiation Processing, Volume. 43, Issue 3, 030402-1(2025)

Degradation of five pesticide residues in Chinese wolfberry using high-energy electron beam irradiation

Jie ZHU¹, Shen TIAN², Xiaoyu YAO¹, and Wei HE^1,3、*

¹Ningxia Food Testing Institute/Key Laboratory of Quality Safety of Chinese Wolfberry and Wine, State Administration for Market Regulation, Yinchuan 750002, China

²Nanjing Animal Disease Prevention and Control Center, Nanjing 210012, China

³College of Veterinary Medicine, Nanjing Agricultural University, Nanjing 210095,China

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Figures & Tables(6)

Fig. 1. Effect of different absorbed doses on the degradation rate of pesticide standard solutions: (a) 2.5 ng/mL; (b) 25 ng/mL; (c) 250 ng/mL

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Fig. 2. Thermal map of pesticide degradation rate in each sample

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Fig. 3. Changes in degradation rates of five pesticides in Chinese wolfberry under different irradiation doses: (a) acetamiprid；(b) imidachloprid；(c) chlorpyrifos；(d) carbofuran；(e) propargite

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Table 1. HPLC gradient elution program
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Table 1. HPLC gradient elution program
时间 / min
Time
流动相A / %
Mobile phase A
流动相B / %
Mobile phase B
0.00
1.00
1.50
2.50
18.00
23.00
27.00
27.10
30.00
97
97
85
50
30
2
2
97
97
3
3
15
50
70
98
98
3
3

Table 2. Mass spectrometry conditions of pesticides and metabolites

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Table 2. Mass spectrometry conditions of pesticides and metabolites

名称 Name	母离子(m/z) Precursor ion	子离子(m/z) Product ion	碎裂电压 / V Fragment	碰撞能量 / V CE	驻留时间 / ms Residence time	加速电压 / V Accelerating voltage
啶虫脒 Acetamiprid	223	126	80	15	6	3
啶虫脒 Acetamiprid	223	99	80	25	6	3
吡虫啉 Imidachloprid	256.1	209	80	10	6	3
吡虫啉 Imidachloprid	256.1	175	80	10	6	3
毒死蜱 Chlorpyrifos	350	198	100	15	6	3
毒死蜱 Chlorpyrifos	350	97	100	35	6	3
炔螨特 Propargite	368.1	231	90	2	6	3
炔螨特 Propargite	368.1	175	90	10	6	3
克百威 Carbofuran	222	165.1	100	10	6	3
克百威 Carbofuran	222	123.1	100	20	6	3
3-羟基克百威 3-Hydroxycarbofuran	238	181	80	5	6	3
3-羟基克百威 3-Hydroxycarbofuran	238	163	80	10	6	3

Table 3. Effect of moisture content on the irradiation degradation rate of imidacloprid in Chinese wolfberry

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Table 3. Effect of moisture content on the irradiation degradation rate of imidacloprid in Chinese wolfberry

含水率 / % Moisture content	农药含量 / (mg∙kg^-1) Pesticide content
	0.46		0.85		2.01
	农残含量 / (mg∙kg^-1) Residue conten	降解率 / % Degradation rate	农残含量 / (mg∙kg^-1) Residue content	降解率 / % Degradation rate	农残含量 / (mg∙kg^-1) Residue content	降解率 / % Degradation rate
9	0.31±0.02^a	32.6^a	0.58±0.04^a	31.8^a	1.65±0.06^a	17.9^a
12	0.26±0.02^b	43.5^b	0.50±0.03^b	41.2^b	1.53±0.06^a	23.9^a
15	0.15±0.01^c	67.4^c	0.37±0.03^c	56.5^c	1.12±0.08^b	44.3^b

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Jie ZHU, Shen TIAN, Xiaoyu YAO, Wei HE. Degradation of five pesticide residues in Chinese wolfberry using high-energy electron beam irradiation[J]. Journal of Radiation Research and Radiation Processing, 2025, 43(3): 030402-1

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