A method for extracting and detecting dioctyl adipate from Antarctic krill
A technology of dioctyl adipate and Antarctic krill, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of many side reactions, complicated post-processing, equipment corrosion, etc., and achieve the effect of simple operation
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Embodiment 1
[0054] Take 2g of dried Antarctic krill, put it in a 200mL beaker with a diameter of 6cm, add 10mL of ethanol with a mass fraction of 95%, conduct ultrasonic extraction at room temperature, 350w, 40kHz, extract for 10 minutes, filter the extract, and place the filtrate in a rotary evaporator Evaporate to dryness in an instrument at 20°C to obtain the crude extract of dioctyl adipate.
[0055] Take 60g of 200-300 mesh silica gel and activate it at 100°C for 10 hours, and cool to room temperature; add 2 times the volume of dichloromethane and stir to suspend the silica gel into a paste; Slowly pour the methane mixture into the chromatographic column along the glass rod, gently tap the wall of the chromatographic column with the ear wash ball to drive away the air bubbles, and add dichloromethane dropwise while tapping until the silica gel column completely settles; when the dichloromethane When the liquid level just reaches the surface of the silica gel bed, close the cock. Slo...
Embodiment 2
[0058] Take 2g of dried Antarctic krill, put it in a 200mL beaker with a diameter of 6cm, add 15mL of ethanol with a mass fraction of 95%, conduct ultrasonic extraction at room temperature, 350w, 20kHz, extract for 15 minutes, filter the extract, and place the filtrate in a rotating Evaporate to dryness in a steamer at 20°C to obtain the crude extract of dioctyl adipate.
[0059] Take 65g of 200-300 mesh silica gel and activate it at 110°C for 8 hours, cool to room temperature; add 2 times the volume of dichloromethane and stir to suspend the silica gel into a paste; Slowly pour the methane mixture into the chromatographic column along the glass rod, gently tap the wall of the chromatographic column with the ear wash ball to drive away the air bubbles, and add dichloromethane dropwise while tapping until the silica gel column completely settles; when the dichloromethane When the liquid level just reaches the surface of the silica gel bed, close the cock. Slowly drop the dioct...
Embodiment 3
[0061] Take 2g of dried Antarctic krill, put it in a 200mL beaker with a diameter of 6cm, add 20mL of ethanol with a mass fraction of 95%, conduct ultrasonic extraction at room temperature, 350w, 28kHz for 15 minutes, filter the extract, and place the filtrate in a rotary evaporator Evaporate to dryness in an instrument at 20°C to obtain the crude extract of dioctyl adipate.
[0062] Take 70g of 200-300 mesh silica gel and activate it at 105°C for 10 hours, and cool to room temperature; add 2 times the volume of dichloromethane and stir to suspend the silica gel into a paste; Slowly pour the methane mixture into the chromatographic column along the glass rod, gently tap the wall of the chromatographic column with the ear wash ball to drive away the air bubbles, and add dichloromethane dropwise while tapping until the silica gel column completely settles; when the dichloromethane When the liquid level just reaches the surface of the silica gel bed, close the cock. Slowly drop ...
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