不同茶叶替代烟叶对咖啡碱烟碱的影响

39 4 Vol 39 No 4 2010 4 Applied Chemical Industry Apr 2010 710055 20 TS 411 A 1671 3206 2010 04 0609 03 to cigarette tobacco Caffeine and nicotine of Department of Chemistry Xi Abstract Thedifferenttypesof teawere directlyadded smokewerecollected ThecontentchangesofcaffeineandnicotinewereresearchedbyUVspectrophoto m2 eter The results show that tea can effectively affect the content of nicotine in smoke when the adding amountofgreen tea is20 thecontentofcaffeine isthemaximum atthe same time thenicotinecontent reaches the minimum Key words tobacco smoke tea nicotine caffeine Effect of different types of tea on content of the DUMeng JIANG Yuan2ru anUniversityofArchitecture andTechnology Xi nicotine and caffeine in mainstream smoke an 710055 China SHZ RE25286A 1 2 1 124 1 Fig 1 Collection device of smoke 1 1 2 3 4 1 1 1 H2 SO4 NaOH 1 3 1 3 1 751 501 0 5 mg mL 2010201229 2010203201 1984E mail xiaomeng0125 163 com 39 3 mol L 7 276 nm 1 5 1 1 3 2 Table 1 Caffeine contents of six kinds of tea 0 5 10 20 g mL 0 g mL 276 nm 2 5 00 g 250 mL 120 mL 95 3h 500 mL 10 00 mL 100 mL 5 mL 0 01 mol L 1 mL 0 90 mol L 25 00 mL 50 mL 50 mL 500 mL 2 3 10 00 mL 100 mL 5 mL 0 01 mol L 1 mL 0 90 mol L 25 00 mL 50 mL 3 mol L C g mL 1 3 3 5 g 0 5 10 15 20 25 60 2 h 10 mL 1 mol L 10 mL 10 gNaCl 20mL 8mol LNaOH 10 mL 1 mol L 250 mL 25 mL V1 100mL V2 6 259 236 282 nm V2 1 059 F A259 0 5 A236 A282 34 3 1 059 34 3 1 L 0 025 mol L 1g 259 nm F V1 4 250 1 3 4 10 g 15 min 30 min 1 2 2 2 1 mg 28 8 25 2 18 7 25 7 23 3 20 1 3 2 2 2 Table 2 Caffeine contents in smoke mg mg mg mg mg mg 0 0 0 0 0 0 0 5 5 15 4 48 1 60 4 93 4 48 3 76 10 10 20 9 35 2 87 7 96 7 87 6 43 15 14 87 13 54 6 92 12 77 13 29 8 34 20 20 62 18 34 12 52 20 67 19 75 12 83 5 g 0 5 10 15 20 25 2 20 8 4 5 g 0 5 10 15 20 25 3 3 3 Table 3 Effect of tea amount on the content of nicotine in smoke mg mg mg mg mg mg 0 19 13 19 13 19 13 19 13 19 13 19 13 5 8 87 15 47 18 34 10 58 15 48 18 33 10 7 17 13 26 17 58 8 35 11 16 15 07 15 5 50 12 37 14 49 6 39 10 05 13 58 20 4 71 9 96 13 29 4 24 9 02 10 26 25 2 80 7 84 10 98 3 86 7 24 9 17 4 3 4 4 Table 4 Complexation between extration and nicotine mg 2 18 24 18 24 18 24 18 24 18 24 18 24 1 4 63 7 22 9 16 6 24 4 75 6 57 30 45 24 33 19 18 25 64 29 78 26 03 1 2 6 5 9 3 20 1 J 2003 25 3 1422144