all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...

Concept of delict(Tort) in Roman Law on the base of Deontology as a ethical theory is recognized in the concept of  breach of first Duty and structure of category in this legal system is formed on the base of Obligation and Responsibility as a secondary of breach of first Obligation.in contrast in Common Law and Jurisprudence, concept of Tort in accordance to ethical theory of teleology is...

چکیده ندارد.

fluorescence chemical sensors for the highly sensitive and selective determination of pb2+ , hg2+, co2+ and fe3+ ions in aqueous solutions are described. the ion sensing system was prepared by incorporating lipophilic ligand (l) as a neutral ion-selective fluoroionophore in the plasticized pvc membrane containing sodium tetraphenylborate or potasium tetrakis (p-chlorophenyl) borate as a liphoph...