Acetone calibration curve

Dissolved the cleaned-up sample in 4 mL of acetone and inject a 2- iL portion of the sample solution into the preconditioned gas chromatograph. Determine the concentration of hymexazol by relating the height of the hymexazol peak to a fresh calibration curve. 

Quantification is performed by the calibration technique. Construct a new calibration curve with acetamiprid standard solutions using acetone for each set of analyses. Inject 2- uL aliquots of the standard solution containing acetamiprid from 0.04 to 1 ng in 2 uL of acetone. The acetamiprid peak usually appears at a retention time around 4 min. Plot the peak height against the injected amount of acetamiprid. 

Quantitation is performed by the calibration technique. Construct a new calibration curve with methomyl oxime standard solutions (0.2, 0.4, 0.6, 0.8 and 1.0 xgmL in acetone) for each set of analyses. Plot the peak area against the injected amount of methomyl oxime on logarithmic paper. As the amount of alanycarb is measured in terms of its oxime derivative, a conversion factor of 3.8 (the molecular weight ratio of alanycarb to methomyl oxime) should be applied to obtain the net amount. The injection volume should be kept constant as the peak area varies with the injection volume in flame photometric detection. Before each set of measurements, check the GC system by injecting more than one standard solution containing ca 2-10 ng of methomyl oxime. 

Recommendation Inject standard solutions (0.2, 0.4, 0.6, 0.8 and 1.0 igmL in acetone) and sample solutions alternately rather than constructing the calibration curve in advance. 

DISCUSSION. Figure 10.11 shows the separation of a group of gases from blood. The procedure described depends on complete equilibration between the gas and liquid in the syringe. The period to achieve equilibration depends on the gas, and can be as little as 1 min for acetone and as much as 30 min for sulfur hexafluoride. Linear calibration curves can be obtained when peak height is plotted against gas concentration for either the flame ionization or electron capture detector. The reproducibility (n = 10) for ethane gave a standard deviation of 23% of the mean concentration while it was 2.3% for halothane and 1.8% for ether. 

Figure 8. Calibration curves of glucose sensor ]y having a glucose semipermeable AC membrane. The AC membranes were cast using a solution of acetyl cellulose formamide aceton = 25 30 45 (wt %) and tempered at 85°C...

The independent measurements of surface tension were obtained by the tedious Wilhelmy plate method. Figure 3 illustrates such a calibration curve for one set of orifices and for five types of test fluids (methanol-water, ethanol-water, acetone-water, sodium lauryl sulfate in water saturated with methyl methacrylate, and polymethylmethacrylate latices). This is a "universal" calibration curve independent of the fluid being monitored. For the 63 data points shown in Figure 3, the least squares regression line is given by... 

Figure 3. Example calibration curve for the surface tensiometer ((X) Il-MEOH-H20 (O) J2-ET0H-H20 O 12-acetone-H,0 (A) T1-SLS-MMA-H20 (xx )...

Figure 10.3 Comparison of experimental calibration curves of Rp =/(AT) (dotted lines) with best fit using a simplified Kelvin equation Rp = A/AT + t (solid line). The data are adapted from reference [29] for water (a) and from reference [28] for acetone (b).

GPC/universal calibration curve Rheovibron measurement at 11 Hz 2.2% acetone extractable 0.7% acetone extractable... 

Fitting into the trend towards improvement of the availability and simplification the preparation of biocatalytic layers for biosensors, the use of crude materials has been explored. Arnold and coworkers investigated the feasibility of employing Jack bean meal in a urea sensor (Arnold and Glaizer, 1984) and rabbit muscle acetone powder in a sensor for adenosine monophosphate (Fiocchi and Arnold, 1984). Both sensors turned out to be serious contenders with the appropriate enzyme electrodes with respect to lifetime and slope of the calibration curves. Other parameters, such as response time and linear range, were quite similar. 

FIGURE 52 2 Typical calibration curves for various mixtures of methanol, acetaldehyde, acetone, isoprene, benzene, and styrene between 0 and 80 ppbv. 

Details on the preparation of P60Me have been reported previously (11). The weight average molecular weight, Mw, as detected from GPC, and referred to a calibration curve on polystyrene standards was 24.000 with a Mw/Mn of 1.6. All the data reported in the text are referr to the polymer obtained as residue to hot acetone extraction. The regioregularity of the polymer, as determined by H-NMR investigation, was 98% (11). 

Suppose the SEC data in Fig. 6.8 were obtained from a polymethyl methacrylate (PMMA) sample using acetone as a solvent at 30°C. Using the polystyrene calibration curve, Fig. 6.9, obtain M , M , and the polydispersity index for the PMMA sample. Necessary data are as follows ... 

Breakthrough Experiments. For the breakthrough experiments the sorbents were packed in 100-mg beds, 4 mm in diameter, and inserted into the six ports in the manifold. The effluent ends of the tubes were connected to a common line leading to the flame ionization detector. While the flame ionization detector, calibrated with the challenge atmosphere, monitored the concentration of vinyl acetate in the combined bed effluents, the pump in the detector drew the challenge atmosphere through each bed at approximately 0.2 L/min. The output from the detector, the breakthrough curve, was recorded with a strip-chart recorder. Most of the porous polymer sorbents tested were first washed with acetone and dried. 

In the atomic absorption procedure 5-10 mg of organoantimony compound is dissolved in 5 ml of butan-2-one, acetone, dimethoxyethane or THF depending on the solubility of the organoantimony compound. Concentrated hydrochloric acid and ethanol are added and the mixture diluted with water. The solution is aspirated into a fuel-rich air-hydrogen or air-acetylene flame and the absorbance measured at 217.6 nm in the flame just above the burner head. The calibration graph is slightly curved over the range... 

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