Method for producing safe farm products in organic polluted soil

[0017] Add 50 mg / kg myristylpyridinium bromide (MPB) to PAHs polluted (50 mg / kg phenanthrene concentration) soil to produce carrots.

[0018] 25 mg of tetradecylpyridinium bromide was dissolved in 50 mL of water, and the solution was added to 500 g of soil in a pot. At the same time, a blank control without adding tetradecylpyridinium bromide was set.

[0019] Sprinkle the carrot seeds directly into the pot and thin the seedlings after germination. Carrots were cultivated in a greenhouse at 25°C for 100 days according to conventional water and fertilizer management procedures, and carrots were harvested.

[0020] The collected carrot samples were dried by a freeze dryer, ultrasonically extracted with a mixture of dichloromethane and acetone (volume ratio 1:1), concentrated and purified by rotary evaporation, rinsing through a silica gel column, etc., constant volume with methanol, and finally passed through 0.22 μm filter and analyzed by HPLC.

[0021] The results showed t

[0023] Add 200mg / kg myristylpyridinium bromide (MPB) to PAHs polluted (50mg / kg phenanthrene concentration) soil to produce carrots.

[0024] 100 mg of tetradecylpyridinium bromide was dissolved in 50 mL of water, and the solution was added to 500 g of soil in a pot. At the same time, a blank control without adding tetradecylpyridinium bromide was set.

[0025] Sprinkle the carrot seeds directly into the pot and thin the seedlings after germination. Carrots were cultivated in a greenhouse at 25°C for 100 days according to conventional water and fertilizer management procedures, and carrots were harvested.

[0026] The collected carrot samples were dried by a freeze dryer, ultrasonically extracted with a mixture of dichloromethane and acetone (volume ratio 1:1), concentrated and purified by rotary evaporation, rinsing through a silica gel column, etc., constant volume with methanol, and finally passed through 0.22 μm filter and analyzed by HPLC.

[0027] The results showed t

[0029] Add 600mg / kg myristylpyridinium bromide (MPB) to PAHs polluted (50mg / kg phenanthrene concentration) soil to produce carrots.

[0030] 300 mg of tetradecylpyridinium bromide was dissolved in 50 mL of water, and the solution was added to 500 g of soil in a pot. At the same time, a blank control without adding tetradecylpyridinium bromide was set.

[0031] Sprinkle the carrot seeds directly into the pot and thin the seedlings after germination. Carrots were cultivated in a greenhouse at 25°C for 100 days according to conventional water and fertilizer management procedures, and carrots were harvested.

[0032] The collected carrot samples were dried by a freeze dryer, ultrasonically extracted with a mixture of dichloromethane and acetone (volume ratio 1:1), concentrated and purified by rotary evaporation, rinsing through a silica gel column, etc., constant volume with methanol, and finally passed through 0.22 μm filter and analyzed by HPLC.

[0033] The results showed t