1.中国林业科学研究院木材工业研究所，北京 100091
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张景朋,张卿硕,蒋明亮等.醚菌酯高效液相色谱分析方法及其防腐材抗流失性能研究[J].木材科学与技术,2023,37(02):66-71.
ZHANG Jingpeng,ZHANG Qingshuo,JIANG Mingliang,et al.Analytical Method for Kresoxim-Methyl by HPLC and Leaching Performance of Treated Wood[J].Chinese Journal of Wood Science and Technology,2023,37(02):66-71.
采用紫外检测器及C18反相色谱柱，优化得到分析醚菌酯的色谱条件：,V,（甲醇）∶,V,（水）=85∶15为流动相，流速0.8 mL/min，检测波长220 nm。醚菌酯的质量浓度在5~100 mg/L范围内时，标准曲线决定系数为0.9997，线性相关性显著；分析样品的变异系数为0.55%，样品的回收率为99.6%~101.5%。抗流失试验结果表明：醚菌酯防腐工作液的质量分数为0.04%、0.08%和0.16%时，马尾松（,Pinus massoniana,）和杉木（,Cunninghamia lanceolata,）处理材的流失率分别在4.7%~7.5%和3.2%~6.9%之间，低于107杨（,Populus,×,euramericana, cv.‘74/76’）处理材（11.5%~18.4%）。3种处理材的流失率均在20%以下，抗流失性较好。乙醇溶解醚菌酯处理材的流失率稍高于水基化制剂处理材的流失率，因此将醚菌酯制备成水基化制剂可用于户外处理木材及其制品。
UV detector and C18 reversed-phase column were used for detection. The chromatographic conditions for analysis of kresoxim-methyl were as follows: flow phase methanol-water ratio of 85∶15, the flow rate of 0.8 mL/min, UV detection wavelength of 220 nm. There was a good linear relationship between kresoxim-methyl concentration and chromatographic peak area in the range of 5~100 mg/L, with a determination coefficient of 0.9997. The coefficient of variation and recovery of samples were 0.55% and 99.6%~101.5%, respectively. The results of the leaching test showed that when the concentrations were 0.04%, 0.08%, and 0.16%, the leaching rate of kresoxim-methyl from Masson pine and Chinese fir were 4.7%~7.5% and 3.2%~6.9%, which were significantly lower than those of treated poplar‘107’(11.5%~18.4%). The leaching rate of kresoxim-methyl in the treated Masson pine, Chinese fir and poplar‘107’were all below 20%, the leaching resistance were excellent. The leaching rate of the treated wood with ethanol-dissolved kresoxim-methyl was higher than that of the water-based formulation, therefore the water-based formulation of pyraclostrobin was suitable in outdoor applications of treated wood and wood products.
醚菌酯高效液相色谱防腐材抗流失性
kresoxim-methylhigh performance liquid chromatography(HPLC)treated woodleaching resistance
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