Chemical constituents comparison of essential oils of aerial parts of Conium maculatum L. growing wild in Iran by hydrodistillation, microwave assisted hydrodistillation and solid phase microextraction methods

The present report deals with the analysis comparison of the essential oils from aerial parts of Conium maculatum L. growing wild in Iran were obtained by hydrodistillation, microwave assisted hydrodistillation and solid phase microextraction methods and collected essential oils were analyzed by GC and GC-MS. The plant is a member of the Apiaceae family of rhizomal plant which are usually 120-180cm high. C. maculatum which is also called as Poison hemlock is refered to as one of the most toxic plants. The volatiles were isolated from dried aerial parts of the plant. Twenty two compounds were identified representing 73.8% of total volatiles obtained by HD and the major constituents of the essential oil were α-pinene(16.2%), camphene (9.9%), limonen(8.6%) and linalool(5.3%).Sixteen compounds were identified representing 74.6% of total oils obtained by MAHD and the main components were camphene(13.0%) , limonene(8.7%) , linalool(8.4%) and Fenchyl acetate(7.6%) .Nine compounds were identified representing 99.8% of total oils obtained by SPME and the main components were α-pinene(42.1%), sabinene(16.2%0), limonene ( 11.3%),camphene(9.5%) and myrcene(7.9%).DOI: http://dx.doi.org/10.3126/ijls.v9i2.12056 International Journal of Life Sciences 9 (2) : 2015; 48-50

Simultaneous determination of lovastatin and niacin in tablet by first and third derivative spectrophotometry and H-point standard addition methods

Most cardiovascular diseases need to be treated by more than a simple drug and the use of combination products diminishes noncompliance. Advicor(®) as a combination product of a vitamin and a fat lowering agent has no monograph in official pharmacopeias for its quality control purposes. In this study, first and third derivative signals for NA and LV quantitation at the two pairs of wavelengths, 261 and 273 nm; 245 and 249 nm were monitored with the addition of standard solutions of NA or LV, respectively. The limits of detection were 0.03 and 0.32 mg/L for LV and NA, respectively. The limits of quantitation were 0.09 and 0.78 mg/L for LV and NA, respectively. RSD% for both interday and intraday precision was lower than 2.6 and 2.7% for LV and NA, respectively. Selectivity of the method was assessed for both degradation products produced in stress conditions and common excipients that may present in the pharmaceutical dosage forms. The recommended procedure was successfully applied to real samples.