Where T is transmittance, I0 is intensity of incident light, I is intensity of transmitted light and Is is intensity of stray light. Stray light has an increasing influence on spectroscopic measurements at low levels of intensity, that is, high absorbances. The result is that stray light causes a negative bias in instrument response and eventually becomes the limiting factor for absorbance and ...

Syzygium jambos (L.) Alston (Myrtaceae) is a widespread medicinal plant traditionally used in sub-Saharan Africa to treat infectious diseases. Acetone and aqueous extracts from the bark of S. jambos were tested for antimicrobial activity in vitro by the agar dilution method in petri dishes. Both extracts showed some activity against the tested micro-organisms. They proved to be particularly eff...

The demand for FDT (Fast Disintegrating Tablet) has been increasing from the last decade particularly in geriatric, pediatric and patient with some sort of disabilities in swallowing. FDTs are those tablets which when placed in mouth get dissolved rapidly in saliva without the need of liquid and can be swallowed. European pharmacopoeia adopted the term Orodispersible tablet for FDTs. Fast disin...

The impurity analysis of ethylene glycol in hydroxyethyl starch (HES) was evaluated using the exact method and conditions described in the official EP 8.2 (2014) monograph [2]. The evaluation was performed using an ALEXYS® LC-EC analyzer for ethylene glycol, based on the DECADE Elite electrochemical detector and a SenCell with Au working electrode (WE) and HyREF (Pd/H 2 ) reference electrode. D...

Background and Objectives: Essential oils (EOs) possess a wide range of significant properties including antiphlogistic, spasmolytic and antinociceptive effects. In this study, we use EOs from Thymus daenensis, Thymus caramanicus and Ziziphora clinopodiodes. Materials and Methods: In this study, the plants were collected from the Botany Department, were air dried, grinded and set for extract...

The European and United States Pharmacopoeia demand a noninferiority study on the detection of microorganisms when an alternate qualitative microbiological method is intended to replace compendial method. However, without imposing any modeling assumptions or constraints, studies require large numbers test samples for proposed criterion 0.7 higher each microorganism. When we can assume that accu...