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Chewing gum in the rapid determination of polyphenols

Results Tab. 1Experimentresultsofstandardputin-recycle concentration m_1) spiked carp mg) smoke concentration mg) Average concentration m_1) average pigsty% standard deviation Ol1o29I598826888878888888888222222225988O79O7777877866666666OOOOOOOOIllIllIl2222222288O69oo737877898O7777777833333333O0OOOOOO222222225,, 2009 No. 4 Volume 36, No. 192 Guangdong Chemical General www. gdchem. com169 CONTINUED 1 concentration c / (mg.L4) plus marrow (mg.LI) absorbance measured concentrations () of the average concentration c, (mg.LI) average recovery of standard deviation s R / S% D26-31.1301. 12811311.1301.1321.1291.1271.13547.747.647.847.747.847.747647.947.710160.1102328.01.1731.17611741.1771.1751.17511741.17949.549.649.649. 749649.649649.849.610220.090.18 shown in Table 1, simple method,mbt shoes, the average recovery was 95.1% ~ 102.2% and relative standard deviation less than 0.29%. The experimental results show that the method is feasible. 2.3 precision experiments that take a chewing gum sample mass of about 1.0g or so (accurate to O.0001g),UGG Schuhe, in the 50mL beaker, dissolved with 20mL25% ethanol, transferred to 50mL flask, and with 25% ethanol to the mark,moncler outlet, shake well. Pipette 2.0mL of sample treatment solution prepared in 25mL colorimetric tube, constant volume with 25% ethanol, and the same way as the standard curve measured absorbance. The samples were 6 replicate measurements, the results in Table 2: Table 2, the precision of test method in Tab. 2Precisionof ~ cilitymethod Sample Number Weight m / g absorbance A concentration of Q (mg · L) measured value / (g ·) average / (g '..) Standard deviation sRSD /% 0.94790.9332095760.9783103401.142003300 .3240.33803430.3620.40314.179.34513.929324145 l9.47093920. O60.5914.729.4031551937817.239432 Table 2 shows, using simple method to test, the standard deviation was 0. O6, the relative standard deviation was 0.59%. The measured concentration of polyphenols in chewing gum 9.392g/kg. So simple method for the determination of polyphenols in chewing gum is feasible. And the method steps and more simple, less reagent,glätteisen ghd, it can be simplified method is the preliminary view that a quick determination of chewing gum in an ideal way of tea polyphenols. 3 Conclusion The determination of polyphenols simple method for the determination wavelength: wavelength 274nnl. Analysis of the polyphenol content of gum samples 9.392g & g. Standard addition recovery experiment was that the average recovery was 95.1% ~ 102.2%, relative standard deviation less than 0.29%, the initial analysis is feasible. Simple method is relatively simple steps,ugg boots, required fewer drugs, lower cost. Therefore, it can initially determine the simple method is a quick quantitative analysis of chewing gum in an ideal way of tea polyphenols.
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