每个重量平行测试3次在称样量为1.3g、2g、3g条件下测定的结果RS

Weight of each parallel test three times <br>in the sample weight was 1.3g, 2g, 3g measured under conditions were the results of RSD 1.4%, 1.2%, 2.2%, and the results are in line with the requirements, the test sample weight detection results no significant influence, so the instrument of the recommended weight 1.3g selected measuring conditions. <br>9.1.2 degree of vacuum <br>of the test sample of about 1.3g, accurately weighed, placed in the instrument support cylinder, so too did the test cylinder bottom arc portion, the cylinder is placed in a dry test module (DPS) in. <br>Respectively 15 "H2O, 20" H2O, 30 " carried out in H2O (instrument maximum vacuum) measurement conditions, collecting D10, D50, D90 data in the vacuum degree of <br>each degree of vacuum of 3 samples were tested in parallel <br>method parameters: <br>measurement drift : <br>measurement of the background: <br>refractive index: <br>a vacuum degree of 15 "H2O, 20" measurement result under the condition H2O H2O, 30 ", which D10, D50, D90 RSD of 2.0%, 3.1%, 3.0%, indicating the degree of vacuum of the no significant effect on the detection result, the degree of vacuum in 15 "H2O ~ 30" H2O are applicable to detect the particle size distribution of microcrystalline cellulose. <br>The degree of vacuum 30 "H2O and the instrument default maximum vacuum degree of vacuum, in order to obtain an optimal dispersion effect of the sample, and preventing the degree of vacuum falls to 15" H2O or less, the maximum vacuum level select instrument 30 "H2O measurement conditions.

3 parallel tests per weight<br>The results of RSD measured under the weighing volume of 1.3g, 2g and 3g were 1.4%, 1.2% and 2.2% respectively, and the results all met the standard requirements, and the sample weighing for the test product had no obvious effect on the test results, so the recommended weight of 1.3g was selected as the determination condition.<br>9.1.2 Vacuum<br>Take the test product about 1.3g, precision, set the instrument supporting the cylinder, so that the test product does not excessive barrel bottom arc part, the measuring tube placed in the dry test module (DPS).<br>The D10, D50, D90 data are collected, and D10, D50, and D90 data are collected, respectively, under the conditions of vacuum of 15 " H2O, 20 " H2O, and 30 " H2O (maximum vacuum degree of the instrument).<br>Test 3 samples in parallel for each vacuum degree.<br>Method parameters:<br>Measuring drift:<br>Measurement background:<br>Refractive index:<br>The results of the rsD of D10, D50 and D90 were 2.0%, 3.1%, and 3.0% respectively under the condition of vacuum of 15 x H2O, 20 x H2O, 30 , H2O, h2O, H2O, H2O, and D90, respectively, indicating that the vacuum degree had no obvious effect on the test results, and the vacuum degree was 15 "H2O to 30" H2O is suitable for microcrystalline cellulose particle size distribution detection.<br>Vacuum degree 30, H2O is the maximum vacuum and default vacuum degree of the instrument, in order to obtain the optimal dispersion effect of the sample, and prevent the vacuum degree from falling below 15 s" H2O, select the maximum vacuum degree of the instrument 30" H2O as the determination condition.

3 parallel tests per weight<br>The RSD of the test results were 1.4%, 1.2% and 2.2% respectively under the conditions of weighing 1.3g, 2G and 3G, and the results met the requirements of the standard. The weighing of the test sample had no obvious influence on the test results, so the instrument recommended 1.3g as the test condition.<br>9.1.2 vacuum degree<br>Take about 1.3g of the test sample, weigh accurately, and place it in the measuring cylinder matched with the instrument, so that the test sample does not exceed the arc part at the bottom of the cylinder, and place the measuring cylinder in the DPS.<br>Measure under the conditions of 15 "H2O, 20" H2O and 30 "H2O (maximum vacuum of the instrument), and collect D10, D50 and D90 data.<br>Three samples are tested in parallel for each vacuum degree.<br>Method parameters:<br>Measurement drift:<br>Measurement background:<br>Refractive index:<br>The RSD of d10, D50 and D90 were 2.0%, 3.1% and 3.0% respectively under the conditions of 15 "H2O, 20" H2O and 30 "H2O, which indicated that the vacuum had no obvious influence on the test results. The vacuum degree of 15" H2O ~ 30 "H2O was suitable for the particle size distribution test of microcrystalline cellulose.<br>The vacuum degree of 30 "H2O is the maximum vacuum degree and default vacuum degree of the instrument. In order to obtain the best dispersion effect of the sample and prevent the vacuum degree from falling below 15" H2O, the maximum vacuum degree of 30 "H2O of the instrument is selected as the determination condition.<br>