Time for review of analytical chemistry course curriculums

Analytical chemistry offers numerous career options in industry, laboratories and academic institutions. This has been possible due to growing demand for mass produced consumer goods and increasing concerns for quality. In addition to quality of products analytical chemistry also contributes significantly to development of new materials with required properties. In earlier days and even to […]

Should negative research findings be rejected outright?

Scientific research is full of ambiguities as well as opportunities. The findings you arrive at depend greatly on the control over experimental conditions. Slightest variations of such conditions can lead to differences in results. The earlier article “Uncertainty of measurements – How to quantify ambiguity of your results” lists out some of the factors that […]

Understanding differences between solutions, emulsions, colloids and dispersions

Analysis of samples in laboratories more than often requires pre-treatment steps for extraction, isolation, concentration or dilution to measurable concentration ranges. This is generally achieved by dissolving the sample in a suitable solvent. However, the solubility of a compound in a solvent depends on the affinity between the compound and the solvent. Depending on the […]

How to ensure reliability of your pH measurements?

A pH meter is an indispensable commodity in any chemical laboratory irrespective of its size of scale of operation. Useful tips on correct handling and care of pH meter were provided earlier. The present article is a further elaboration on the subject to help you gain greater confidence on the observed pH readings. Electrode should not […]

What are laboratory standards and reference materials?

Standards and reference materials play a crucial role in any analysis. It is just not possible to imagine any analysis in which a standard reference is not involved. Identification of sample components can be made only against reference to a known standard. Similarly the amount of any component in the sample can be determined by […]

Water purity grades for laboratory use

Water is the most common commodity in any laboratory and finds several uses such as: Media for dissolving compounds Washing of laboratory glassware Coolant in several applications Blank media in quantitative analysis Universal solvent character makes it a dissolution media for dissolving most substances but this unfortunately also leads to its easy contamination from different […]

How to make your scientific writing more effective?

The objective of writing this article is to benefit the scientific researcher who is an outstanding laboratory worker in terms of mastery over skills and has a sound knowledge over his field. At times he or she may face difficulty in communicating his findings because of little or no attention to development of written and […]

Measurement of Gas volumes in Laboratories

Measurement of gas volume contributes to studies on reaction rates and commercial viability of chemical and biochemical processes in which a gas Is a by-product. Additionally measurement of volumes of vapours are also required for determination of molecular weights of volatile liquids by Victor – Meyer method. Measurement of volumes of liquids in comparison is […]

Laboratory Cryogens and their uses

Cryogens are materials with boiling points below which find applications in laboratories requiring extremely low temperatures. Such materials boil well below room temperature and on sudden exposure to room temperature can result in uncontrolled boiling. Cryogenic materials require special handling, storage and transportation. For common laboratory applications a vacuum jacketed dewar is sufficient. A loose […]

Differences between Primary and Secondary reference standards used for analytical work

Any chemical analysis can be considered valid only if the method of analysis is validated before adoption and results are reported against internationally recognized standard reference materials. Results of such analysis can be relied upon by consumers as well as other laboratories across the world. Standards are primarily used for the following types of analytical studies: […]

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