A method for the determination of tobacco sweeteners by high performance liquid chromatography
A high-performance liquid chromatography and sweetener technology, which can be used in measurement devices, instruments, scientific instruments, etc., can solve the problems of low detection efficiency and sensitivity of cigarette sweeteners, and achieve high sensitivity, short analysis time, and simple operation. Effect
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example 1
[0053] 1. Instruments and reagents
[0054] The 5 sweeteners and methanol are all chromatographic grade reagents; they meet the requirements of first-grade water in GB / T 6682.
[0055] High performance liquid chromatography (Agilent 1260Infinity LC, American Agilent Company); diode array detector (Agilent 1260Infinity DAD, American Agilent Company); Hukang centrifuge (TG16-WS, Hunan Hukang Centrifuge Co., Ltd.); MS303S electronic balance (Sensitivity 0.0001g, Mettler Toledo, Switzerland); full-temperature oscillator (HZQ-F160, Okura Experimental Equipment Factory).
[0056] 2. Extraction of samples
[0057] Weigh an appropriate amount of tipping paper sample, after pretreatment, add an appropriate amount of ultrapure water for mechanical vibration extraction, let it stand still, take an appropriate amount of extract to pass through a 0.22 μm organic filter membrane, and perform HPLC-DAD analysis.
[0058] 3. Prepare the standard working solution; see the preparation of the sta...
example 2
[0065] 1. Instruments and reagents
[0066] The 5 sweeteners and methanol are all chromatographic grade reagents; they meet the requirements of first-grade water in GB / T 6682.
[0067] High-performance liquid chromatography (Agilent 1260Infinity LC, Agilent Corporation of the United States); diode array detector (Agilent 1260Infinity DAD, Agilent Corporation of the United States); ultrasonic extraction apparatus (SB-3200DT, Ningbo Xinzhi Biotechnology Co., Ltd.).
[0068] 2. Extraction of gum-based cigarette samples
[0069] Weigh an appropriate amount of gum-based tobacco sample, after pretreatment, add an appropriate amount of extract solution for ultrasonic vibration extraction, absorb an appropriate amount of extract solution and filter it through a 0.22 μm water phase filter membrane into a chromatographic bottle, and use it as a sample solution for HPLC-DAD analysis.
[0070] 3. Prepare standard working solution
[0071] 4. HPLC-DAD determination and analysis.
[0072...
example 3
[0077] 1. Instruments and reagents
[0078] The 5 sweeteners and methanol are all chromatographic grade reagents; they meet the requirements of first-grade water in GB / T 6682.
[0079] High-performance liquid chromatography (Agilent 1260Infinity LC, Agilent Corporation of the United States); diode array detector (Agilent 1260Infinity DAD, Agilent Corporation of the United States); ultrasonic extraction apparatus (SB-3200DT, Ningbo Xinzhi Biotechnology Co., Ltd.).
[0080] 2. Extraction of bagged snus samples
[0081] Weigh an appropriate amount of snuff sample, after pretreatment, add an appropriate amount of extract solution for ultrasonic oscillation, draw an appropriate amount of extract solution and filter it through a 0.22 μm water phase filter membrane into a chromatographic bottle, and use it as a sample solution for HPLC-DAD analysis.
[0082] 3. Prepare standard working solution
[0083] 4. HPLC-DAD determination and analysis.
[0084] 5. The content of each sweete...
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