Electromagnetic Spectrum Analysis

The view of colors within nature is truly the view of light registered by the human eye. Therefore, these dominant colors of red, orange, yellow, green, blue, and violet, are known as visible light. Light, which governs the visual perception of the world, is a part of the energy group known as electromagnetic radiation. Electromagnetic radiation (EMR) describes the type of waves that interact within electrical and magnetic fields. These waves vary in frequency and wavelength within the visible light spectrum, producing these distinct colors.

In the interaction of these waves with matter in space, at each wavelength under the visible light region, matter absorbs certain wavelengths (or colors) on a 0 to 1 scale – 0 being no absorbance and 1 being full absorbance – and reflects the complementary colors. This is why leaves in the spring appear green in color as they absorb wavelengths corresponding to the colors of red and orange.

This characteristic of light creates a unique method of analyzing unknown solutions, where the maximum wavelength of a known solution is recorded based on the highest point of light absorbance in the solution. This wavelength is then used to measure the absorbance of unknown

To evaluate the commercial claim of 18 mg of Iron within the tablet, a data conversion of concentration of the solution to the mass of iron present in the tablet was necessary and produced a value of 17 ± 1 mg. With the addition of a positive error, this value is the same as the advertised allotment of Iron in the tablet, creating a percent difference between the theoretical and experimental measurements of 6%. The high accuracy, high precision, and low percent difference of this final calculation indicates strong data in support of the advertised value depicting a truthful