Safe handling of Laboratory Glassware

Glassware is the most common commodity in a laboratory. Laboratory glassware is a lot different from kitchen glassware used in households as it is designed for special purposes and requires delicate handling. It is important to bear in mind that laboratory glassware is to be used exclusively for laboratory applications and should not be taken […]

Temperature Measurement devices in laboratories

Temperature is defined as the degree of hotness or coldness of a body. In a laboratory temperature measurements are used to establish purity of substances (melting point and boiling point), control over distillation processes, reaction kinetic studies and in several other measurements such as viscosity, density, phase transition studies, determination of flash points of flammable […]

Nature and Types of Ion Exchange Resins

As their names implies ion exchange exchange resins find large number of applications in laboratories and industries. Primarily they find use for replacement of charged ions present in solution with those present in the resin. The most common application is in water softening and treatment plants and several applications are there in liquid chromatographic determination […]

Which Laboratory Distillation Process will meet my requirement?

Distillation is a common laboratory practice used to isolate and purify liquids on the basis of their volatilities characterized by boiling point differences. Distillation, however, results only in partial isolation of liquids present in mixtures. It is important to have clarity on boiling point concept as well as the boiling points of constituents of mixture […]

Differences between Verification, Calibration and Validation

You have perhaps come across these terms in laboratory documents and wondered that they convey the same meaning so where is the need for different terminology. A little insight will help you understand the fine differences between them. Giving their concise definitions may suffice to gain a basic understanding but to help you get a […]

Handling and disposal of toxic laboratory chemicals

A laboratory is a safe place to work provided recommended practices are followed in safe handling and disposal of laboratory chemicals. It is of utmost importance that you should be aware of the hazard potential of chemicals that you are required to use in any study. The best source of such information is the Material […]

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 […]

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