Background: Dronapushpi (Leucas aspera Spreng) of Lamiaceae is found as a weed throughout the country. It described in various Nighantus. To maintain effectiveness crude drugs, standardisation and proper identification plant very important. Fresh juice efficacious malarial fever, collyrium prepared from used jaundice, decoction herb to ulcer wash liquid, also applied externally poisonous insect...

manual fingerprint classification algorithms are very time consuming, and usually not accurate. fast and accurate fingerprint classification is essential to each afis (automatic fingerprint identification system). this paper investigates a fingerprint classification algorithm that reduces the complexity and costs associated with the fingerprint identification procedure. a new structural algorit...

Manual fingerprint classification algorithms are very time consuming, and usually not accurate. Fast and accurate fingerprint classification is essential to each AFIS (Automatic Fingerprint Identification System). This paper investigates a fingerprint classification algorithm that reduces the complexity and costs associated with the fingerprint identification procedure. A new structural algorit...

The aim of the work is to develop a simple, rapid, selective and cost effective HPTLC method for the determination of galangin in Alpinia galanga & Alpinia officinarum. The HPTLC densitometric technique was therefore, selected for the quantitative and qualitative determination of galangin in Alpinia galanga and Alpinia officinarum respectively. There are different analytical methods were used t...

Aim: To identify the hypericin content in Hypericum gaitii Haines through HPTLC & FTIR, an endangered medicinal plant and potential for curing many diseases like cancer, AIDS, tumour etc. Methods: Methanolic extract of leaves derived from in vitro raised plants were used in the mobile phase of Toluene: Ethyl acetate: Formic acid (10:8:3) and scanned under UV at 254nm and 366 nm and under visibl...

Liquid-liquid extraction-thin layer chromatography (LLE-TLC) has been a common and routine combined method for detection of drugs in biological materials. Solid-phase extraction (SPE) is gradually replacing the traditional LLE method. High performance thin layer chromatography (HPTLC) has several advantages over TLC. The present work studied the higher efficiency of a new SPE-HPTLC method over ...

High performance thin layer chromatography (HPTLC) combined with on-spot detection and characterization via easy ambient sonic-spray ionization mass spectrometry (EASI-MS) is applied to the analysis of biodiesel (B100) and biodiesel-petrodiesel blends (BX). HPTLC provides chromatographic resolution of major components whereas EASI-MS allows on-spot characterization performed directly on the HPT...

High-performance thin-layer chromatography (HPTLC)-bioassays are promising new methods for detecting bioactive chemicals in food packaging. Here, we test whether direct-acting genotoxic detectable contact materials (FCM) using HPTLC-bioassays. First, an interactive worksheet lays out steps to calculate needed detection limits (bio)analytical from regulatory limits, including thresholds of toxic...

Abstract High-performance thin-layer chromatography (HPTLC), as the modern form of TLC (thin-layer chromatography), is suitable for detecting pharmaceutically active compounds over a wide polarity range using gradient multiple development (GMD) technique. Diode-array detection (DAD) in conjunction with HPTLC can simultaneously acquire ultraviolet?visible (UV?VIS) and fluorescence spectra direct...