Importance of advance review of analysis requests by testing laboratories

Every laboratory has a specialization which is decided by its expertise and available facilities. Specialization covers areas of analysis such as pharmaceuticals, foods, building materials, geological specimens, environmental analysis covering water, air and industrial wastes, etc. Within the broad spectrum of analysis there are numerous sub- sections and some laboratories enjoy repute due to their […]

Selection of Cell materials for UV – VIS spectroscopic studies

Cuvettes are available in different designs to accommodate sample volumes ranging from micro-liters to a few ml. These are generally made from glass, quartz and transparent plastics.Both glass and quartz cuvettes are fragile and require care in handling and use. Plastics are more durable but have their own limitations.The choice of material depends on nature of […]

Critical role of Method Validation in Chemical Analysis

Each and every analysis requires choice of a method that will help you achieve the required objectives. In case an established method is available you should consider yourself fortunate as this will save you the effort and time required to validate the method before adopting it. Several options are available to you for selection of […]

Essential precautions required for validation of analytical methods

Validation of analytical method plays a crucial role before it is put to routine use. It is therefore important that required precautions be taken during the validation process itself as otherwise it is as good as adopting an un-validated method. The article underlines such parameters and suggests measures that should be taken during the validation process. […]

How to minimize retention time drifts in Gas Chromatography?

Retention time drifts contribute to wastage of time and undue frustration during analytical chromatographic runs. It is defined as the time that the particular compound spends in the column between its injection and detection. In other words it is the time that elapses between its injection and the maximum of its peak response. It helps […]

Prevention of contamination in trace metal analysis laboratories

Today advanced sophisticated analysis techniques are capable of providing trace metal analysis in ppm, ppb or even ppt levels. The most popular techniques are Atomic Absorption Spectroscopy, ICP – MS and ICP – OES. Determinations at low levels can be reliable only if adequate precautions are taken at different stages of analysis such as sampling, […]

Which is better option for quantitative chromatographic calculations – Peak height or Peak area ?

Peak area for quantification by chromatography is preferable to peak height as it takes into consideration peak shape distortions , if any

Professional Qualities that matter in your laboratory team

Team building in a laboratory setup plays a vital role as in any other commercial organization. As a laboratory in charge it is important for you to have clarity yourself on expectations you have from your team members. In other words you have to have a vision and roadmap ready on how you would like […]

Familiarize with the Gas Chromatograph

A Gas Chromatograph like any other analytical instrument has evolved from one with several knobs and dials to one having a simple microprocessor based keypad to control the operational parameters. The simplification has resulted in ease of operation and time saving. An understanding of the main component parts will help in maximum utilization of system capabilities.

Tips on improving accuracy and precision of Gas Chromatographic injections

The accuracy and precision of Gas Chromatographic analysis depends to a significant extent on your skill to use the injection syringe. It is possible to achieve a precision of manual injection volumes less than 1% RSD once you have gained mastery on sample injections. Proper handling and care of chromatographic syringes has been dealt with earlier. […]

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