Shot noise in the detector of this technique induces a standard deviation in its main output T proportional to the square root of T times T plus one. In this technique, using the octant rule to predict the Cotton effect can distinguish enantiomers through circular dichroism. Potassium dichromate is a calibration standard for this technique. Using this technique, the purity of a DNA or RNA mixture is characterized (-5[1])by the (10[1])260 to 280 ratio. (10[1])This technique’s (10[1])input value for a highly conjugated compound (-5[1])can be estimated by applying the Woodward–Fieser rules. This technique’s primary measurement equals the product of concentration, the path length of a cuvette, and the molar extinction coefficient, by the Beer–Lambert law. (10[1])For 10 points, name this technique that tracks the absorbance (10[1])of a sample with respect to low wavelengths. (10[2])■END■ (10[1]0[4])