Method for detecting residue of 22 illegally-added nerve-calming drugs in health product
A technology for illegal addition and detection methods, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of cumbersome operation, single processing method, long time consumption, etc., to achieve high dissolution efficiency, improve detection efficiency, and shorten the effect of time
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Embodiment 1
[0046] Prepare self-made extract in advance, mix 1000g methanol, 100g ethyl acetate and 1g octanol polyoxyethylene ether, heat to reflux for 30min, cool and airtightly store for later use.
[0047] Test a commercially available capsule health product (sample A); accurately weigh 5.00g of the sample into a 50mL plastic centrifuge tube with stopper, then add 30mL of self-made extract, and quickly mix it on a liquid mixer for 1min to make the sample Mix thoroughly. Ultrasonic extraction for 5min, centrifugation at 4000r / min for 10min, 1mL supernatant was blown dry with nitrogen at 40°C, reconstituted with 1mL of 50% methanol aqueous solution; after filtering through a 0.22μm microporous membrane, the filtrate was subjected to HPLC-MS / MS determination, the results are shown in Table 3.
[0048]The detection conditions of HPLC-MS / MS are: the chromatographic conditions in the positive ion monitoring mode are: chromatographic column: Agilent RRHD SB-C18 column (100mm×2.1mm, 1.8μm);...
Embodiment 2
[0052] Prepare self-made extract in advance, mix 1000g of methanol, 100g of ethyl acetate and 1g of octanol polyoxyethylene ether, heat to reflux for 30min, cool and seal for storage until use.
[0053] Test a commercially available granular health product (sample B); accurately weigh 5.00g of the sample into a 50mL plastic centrifuge tube with stopper, then add 30mL of self-made extract, and quickly mix it on a liquid mixer for 1min to make the test Mix completely. Ultrasonic extraction for 5min, centrifugation at 4000r / min for 10min, 1mL supernatant was blown dry with nitrogen at 40°C, and reconstituted with 1mL of 50% methanol aqueous solution. After passing through a 0.22 μm microporous membrane, the filtrate was determined by HPLC-MS / MS, and the results are shown in Table 3.
[0054] The detection conditions of HPLC-MS / MS are: in the positive ion monitoring mode, the chromatographic conditions are: chromatographic column: Agilent RRHDSB-C18 column (100mm×2.1mm, 1.8μm); c...
Embodiment 3
[0058] Prepare self-made extract in advance, mix 1000g of methanol, 100g of ethyl acetate and 1g of octanol polyoxyethylene ether, heat to reflux for 30min, cool and seal for storage until use.
[0059] Test a commercially available tablet-type health product (sample C); accurately weigh 5.00g of the sample into a 50mL plastic centrifuge tube with stopper, then add 30mL of self-made extract, and quickly mix it on a liquid mixer for 1min to make The sample was mixed thoroughly. Ultrasonic extraction for 5min, centrifugation at 4000r / min for 10min, 1mL supernatant was blown dry with nitrogen at 40°C, and reconstituted with 1mL of 50% methanol aqueous solution. After passing through a 0.22 μm microporous membrane, the filtrate was determined by HPLC-MS / MS, and the results are shown in Table 3.
[0060] The detection conditions of HPLC-MS / MS are: in the positive ion monitoring mode, the chromatographic conditions are: chromatographic column: Agilent RRHDSB-C18 column (100mm×2.1mm...
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