重新在命令栏选择method选项,然后选add narrow standards。这样一条calibration curve就做好了,
普适校准(曲线、函数)calibration function or curve [function] 谱带扩展(加宽) bandbroadening (分离作用的)校准函数或校准曲线 universal calibrationfunction or curve [of separation] 加宽校正 broadening correction 加宽校正因子 broadening correction factor 溶剂强度参数ε0,solvent strength parameter 洗脱序列 eluo...
GPC操作步骤 GPC操作步骤 1. 操作前准备 1.1. 标样及样品的配制 1.1.1. 在分析前⼀天称好⼀定重量的标样和样品,置于样品瓶中,加⼊流动相,室温放置 12-24⼩时。通常将2个相差⼤的分⼦量标样配在⼀起。⼀般校准曲线有8个不同分 ⼦量,总共4个标样。1.1.2. 使⽤前缓慢⽔平摇动...
28、相、色谱柱组及温度下,h = h(v)是通用的,ri/v 检测器结合使用,第一步:用任何 窄分布标样(化学结构不重要)建立普适校正曲线,st = vi / ri for each standard h = mst st for each standard polynomial fit to log h universal calibration curve,绝对”分子量分布的测定,绝对”分子量分布的测定,ri...
A simple model of spherical molecules in cylindrical pores has been used to show that the shape of GPC calibration curve is quite insensitive to the width of the pore-size distribution of the porous packing.M.InstituteKubínInstituteS.Institute...
GPC series gas-assisted pressure control console has the latest pressure curve classification independent correction function, the operator can participate in the output pressure control at any time, the machine can move freely. Control system: full PLC control, perfect man-machine operation interface;...
显现数据分析参数编辑窗口,选择Curve类型为三次方曲线。 单击GPCCalculation标签。 采纳窄散布校正法时,在上图QFactor一栏输入RQF值(Q因子比)。 采纳普适校正法时,在上图Viscosity栏中输入标样的α和K值。并点击CalibrationCurve 标签,选中Mark-Houwink,点击settings,输入样品的α和K值。 将GPCCalculation选项打勾。单击确...
The molecular weight is obtained from a calibration curve (see next section). We next perform a summation to obtain the various molecular weight averages that describe the polymer molecular weight distribution. The PD shown is the ratio of the weight average and number average molecular weights ...
Calibration Curve(Linear)标定后,显示校准曲线。 Chromatograph 显示打开的标准品 GPC 格式图谱。 4.如图选择 File∈Load LC Data file 选择(2)中分析标准品时转换的 GPC 数据文件,确定 后显示下面界面: 7 点击该界面中的 GET 键,得到下面界面: 提问是否 Clear Calibration Table ?(清除现在的校准表?)选择 是...
5、 项中,分别键入各个组分峰的分子量然后点击该表左下角的 Draw 显示得到拟合曲线的界面: 在该界面(Calibration Curve(Linear)中,显示标定后的校准曲线。如果校准曲线拟合的不理想,可以点击该曲线左下角的 Type 键,显示下面界面,选中合理的拟合类型: 点击 OK 得到下面重新拟合后的曲线:修正:*如果样品与标准品一...