Forensic Chemistry
Neutron Activation Analysis- A Radioactive Analytical Technique
NAA- Neutron Activation Analysis, a radioactive analytical technique applied for the qualitative and quantitative analysis of a substance.
Forensic Chemistry
Column Chromatography: Principle, Types, Working & Applications
Column Chromatography is a chromatographic technique in which the separation of constituents of a substance is carried out in a column packed with an adsorbing material. It is a type of adsorption chromatography in which the constituents separate at differential rates in fractions. It is a technique that uses a Read more…
Forensic Chemistry
Gas Chromatography: Principle, Working & Uses
Gas chromatography (GC) is a widely used instrumental method for analytical purposes. GC is an analytical separation and purification technique used to analyze a volatile compound in the gaseous phase. This technique is based on the principles of column chromatography where gas is used as the mobile phase. The stationary Read more…
Forensic Chemistry
Gas Chromatography Mass Spectrometry
GC-MS or Gas Chromatography Mass Spectrometry is a hybrid analytical technique that is used to perform the separation, purification, and identification of a substance simultaneously. The Gas Chromatography component is used to perform the separation and purification of the sample whereas Mass Spectrometry helps in the identification of the substance. Read more…
Forensic Chemistry
High Performance Thin Layer Chromatography (HPTLC)
High performance Thin layer chromatography(HPTLC) is a sophisticated form of Thin layer chromatography. It provides superior separation efficiency. The concept of HPTLC includes validated methods for qualitative and quantitative analysis and fulfills all requirements to be used in the fully-fledged environment. It is also known as planar or flatbed chromatography. Read more…
Forensic Chemistry
Chromatography: The Most Ancient Separation Technique
Every component in this universe is made up of matter, the basic principle which we all learned in chemistry. We also learned that every compound is a mixture of multiple elements. Starting from water to colored solutions everything is a combination of one or more elements, which is why for Read more…
Forensic Chemistry
Difference Between Paper Chromatography & Thin Layer Chromatography
Chromatography is a separation technique wherein the different components of a mixture are separated. The mixture to be separated is run through the stationary phase with the help of a mobile phase which separates the different components of a mixture on the basis of partition or adsorption. The history of Read more…
Forensic Chemistry
Thin Layer Chromatography- Principle, Applications and Procedure
Thin Layer Chromatography(TLC) is a separation technique used to separate the components of non-volatile mixtures. TLC is significantly a better separation process than Paper chromatography. TLC was first reported to be used in 1938 in Izmailov and Schreiber. Principle of Thin Layer Chromatography Thin Layer Chromatography is a separation process Read more…
Forensic Chemistry
Paper Chromatography- Types, Forensic Significance, Advantages, and Disadvantages
Paper Chromatography is a separation technique in which a substance mixture is separated based on the partition or adsorption principle where cellulose paper is a stationary phase while the solvent is the mobile phase. Paper chromatography is used particularly for separation of lipid samples and chemical substances. Types of Paper Read more…
Forensic Chemistry
Paper Chromatography | Principle and Procedure
Paper chromatography is a planar type of chromatography used for the separation of mixture of substances. It is a simple, inexpensive and a powerful technique that can separate the components by using small quantities of samples. It is a two-dimensional technique which was discovered by Synge and Martin in the Read more…
Forensic Chemistry
Types & Principles of Chromatography
No wonder, being a science student you must be aware of chromatography techniques. We have been studying these techniques since 12th class and are useful in most of the experiments in the lab. Chromatographic techniques are used in Forensic science laboratories for the analysis of samples making it much more Read more…
Forensic Chemistry
Electrophoresis: Types & Principle You Should Know About
Electrophoresis is a separation technique where different molecules of a substance are separated depending on their capacity to travel through a stationary phase with respect to the mobile phase. The term electrophoresis is derived from two words i.e., ‘electro’ meaning electricity, and ‘phoresis’ meaning separation. Thus, it can be defined Read more…
