Figure 4.Breakthrough curve of 2-propanol in heptane on a Separon SGX silica gel column in normal-phase gradient-elution HPLC calculated using the experimental isotherm data. Gradient 0–50% 2-propanol in 60min,
Once the steady state is achieved, the temperatures measured from the measurement points are utilized to generate temperature distribution curve along the roads. The heat flux through the roads can be determined by utilizing the temperature differences between the measurement points, together with ...
could be baseline separated.The calibration curve was linear in the concentration range of 0.6-6.1μg·mL~(-1)(r= 1.000) for Compactin and the limit of detection was 1.5 ng.The calibration curve was linear in the concentration range of 0.6-6.0μg·mL~(-1)(r=0.9999) for Compactin-Na ...
In the present study a model, which describes satisfactory the retention of ionizable solutes under simultaneous multi-linear pH/organic solvent double gradients, is proposed. In the proposed model, it is considered that every non-linear k versus t curve can be always subdivided into p linear po...
Each color curve represents an instrumental individual measurement record. Full size image In addition, we constructed and analyzed Ad5-delta-24-RGD10(2C) containing the RGD10(2C) peptide in the HI loop of the fiber knob domain (Fig. 3A). Similar to the RGD-4C peptide, the RGD10(2C)...
The absorbance of the mixture was measured at 390 mm and H2O2 concentration was ob- tained according to the standard curve of hydrogen peroxide. 0.5 g fresh leaves are ground into powder in liquid ni- trogen and added into PBS buffer, after centrifugation at 6, 000×g for 10 min the ...
expressed in degrees per centimeter. asecho.org 扭转(torsion)是指以左室长轴为中心,从心底-至心尖旋转 角度的梯度,单位为度/厘米。 asecho.org Average Gradient is the slope of the line connecting two points bordering a specified log-exposure interval on the characteristic curve. motion.kodak.com...
Alliance HPLC 系统 ACQUITY UPLC ACQUITY UPLC I-Class ACQUITY UPLC H-Class 答案 %B = IC + (FC – IC)(t/T) m IC:初始条件 FC:最终条件(在梯度间隔中) T:梯度间隔的结束时间 t:梯度经过的时间 m:曲线编号 6 = X 5 = X1/2 7 = X2 4 = X1/3 8 = X3...
The calibration curve was obtained with polystyrene (PS) standards.Mass spectral experiments were performed to assist in determining the chemical structure of copolymers, using the same Bruker system and method as used for the base layer and described above....
but lie closer to the 0.33 power curve expected for an efficiently packed bed. The deviation of measured values from the 0.33 power curve could be explained by channeling a flow along the wall, but this effect could not be too severe or the reduced plate height wouldn't approach a value ...