c' = concentration of the absorbing solute, in grams per litre.

Apparatus. Use a spectrophotometer complying with the requirements prescribed above and equipped with an analogue resistance-capacitance differentiation module or a digital differentiator or other means of producing derivative spectra. Some methods of producing second-derivative spectra produce a wavelength shift relative to the zero-order spectrum and this is to be taken into account where applicable.

Resolution power. When prescribed in a monograph, record the second-derivative spectrum of a 0.2 g/l solution of toluene R in methanol R, using methanol R as the compensation liquid. The spectrum shows a small negative extremum located between 2 large negative extrema at 261 nm and 268 nm, respectively, as shown in Figure 2.2.25.-1. Unless otherwise prescribed in the monograph, the ratio A/B (see Figure 2.2.25.-1) is not less than 0.2.

Figure 2.2.25.-1

Procedure. Prepare the solution of the substance to be examined, adjust the various instrument settings according to the manufacturer's instructions and calculate the amount of the substance to be determined as prescribed in the monograph.

Supplements For Diabetics

Supplements For Diabetics

All you need is a proper diet of fresh fruits and vegetables and get plenty of exercise and you'll be fine. Ever heard those words from your doctor? If that's all heshe recommends then you're missing out an important ingredient for health that he's not telling you. Fact is that you can adhere to the strictest diet, watch everything you eat and get the exercise of amarathon runner and still come down with diabetic complications. Diet, exercise and standard drug treatments simply aren't enough to help keep your diabetes under control.

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