An experiment is conducted to ascertain trace-level Pb in samples of bovine liver or muscle by applying graphite furnace atomic absorption spectrophotometry (GFAAS). The primary objective is to display the effects of physical and spectral intrusions in determining trace elements, and project the usual methods employed to minimize accuracy errors…

The protein species of apomyoglobin (apoMb) and heme are freed and segregated from the aqueous protein solution of metmyoglobin by liquid chromatography, and are distinguished by UV-Vis absorption or electrospray ionization mass spectrometry (ESI-MS). This is an ingenious and effective approach to characterize apomyoglobin and heme, while students…

Undergraduate students are required to study the chemical balance in supramolecular assemblies constituting two or more interacting species, by using proton NMR spectrometry. A good knowledge of physical chemistry, fundamentals of chemical balance, and NMR are pre-requisites for conducting this study.

The elimination of poisonous metals possessing chemical or radioactive substances, from soils and waters, and chemistry's contribution towards efficacious and environmentally suitable removal methods are discussed. Various original tactics are studied and compared.

The computer systems available for molecular modeling are described, along with a discussion of a molecular modeling program created and supported by computational techniques for the first-semester general chemistry course. Various exercises are listed, which direct the learner from a beginner's course in software practice to more complex…

The journal summarizes practical teaching experiences shared by all science teachers. It contains useful approaches for teaching chemistry with fun and enjoyment in mind.

The chemistry articles published in the September through December 2003 issues of "The Science Teacher (TST)" are examined. Topics on buoyancy, density, molar volumes of gases, absorption spectra and the electromagnetic spectrum are discussed.

The similar problems faced by the physics and chemistry teachers are described. The issue of cheating on tests in the classroom can be addressed by the teachers by comparing methods for monitoring the classroom behavior.

The challenges faced by the predominantly undergraduate institutions (PUI) due to the changing landscape of higher education and research are described. An Undergraduate Research Summit recommends methods for the enhancement of the amount, quality, productivity and visibility of chemistry research at predominantly undergraduate institutions (PUI).

The approaches of teaching organic (full year) and biochemistry courses in the United States colleges and universities are described. The revised courses are probably more useful and relevant for the students as they maintain and improve the education of chemistry majors.

The usage of computational chemistry in a pedagogically effective manner in the undergraduate chemistry curriculum is described. The changes instituted for an effective course structure and the assessment of the course efficacy are discussed.

The hazards of silver used in the laboratories are described for the benefit of the students and the teachers. The exposure limits and symptoms due to acute exposures are also mentioned.

The hazards caused by calcium used in the laboratories are described. The exposure limits and symptoms of acute exposures are mentioned.

A chemical mystery with an emphasis on qualitative inorganic analysis, forensic chemistry and medicinal substances is discussed. The mystery is solved by Sherlock Holmes with the help of clues provided.

The various attributes and ramifications of SN2 versus SN1 reaction pathways are examined. The distinguishing features of SN2 versus SN1 reactions are described by using a thoroughly Shakespearean approach.