Application of Sparging to the Automated Ion Selective Electrode Determination of Kjeldahl Nitrogen

Ion Selective Carbon Paste Electrode For The Determination Of Flavoxate Muscle Relaxant Drug In Pharmaceutical Formulation

Abstract The utility of carbon paste electrode for the determination of flavoxate HCl modified with flavoxate-tetraphenylborate (FLX-TPB) and flavoxate-phosphotungestic acid (FLX-PTA) ion-pairs in batch mode is demonstrated. The electrodes revealed a Nernstian response over a wide concentration ranges 1.39×10-5-1x10-2 mol L-1 and1×10-5-1x10-2 mol L-1 using FLX-TPB and FLX-PTA, respectively. The...

Coulometric Determination of Protein Nitrogen. Application to Direct Titration of Kjeldahl Digests.

A coulometric method is described for the determination of ammonia resulting from micro-Kjeldahl digestion of protein samples. The method has been applied to the direct titration of the ammonia in the digests. Routine titration of the ammonia resulting from lOsl. serum samples is described; the method has been applied to 1 -JLI. samples. Results are compared with standard macroand micro-Kjeldah...

Ion-selective electrode for the determination of prazosin in tablets.

A poly (vinylchloride) (PVC) membrane electrode selective for prazosinium cation based on prazosinium-phosphotungstate (PZ)(3)PT ion-associate is prepared. The electrode exhibits a linear response with an approximate Nernstian slope over the range of 2.7 x 10(-6)-10(-2) M. Calibration graph slope of the electrode is 58 mV PZ(-1) concentration decade when preconditioned by soaking in distilled w...

Determination of nitrogen oxides in ambient air using a coated-wire nitrate ion selective electrode.

the innovation of a statistical model to estimate dependable rainfall (dr) and develop it for determination and classification of drought and wet years of iran

آب حاصل از بارش منبع تأمین نیازهای بی شمار جانداران به ویژه انسان است و هرگونه کاهش در کم و کیف آن مستقیماً حیات موجودات زنده را تحت تأثیر منفی قرار می دهد. نوسان سال به سال بارش از ویژگی های اساسی و بسیار مهم بارش های سالانه ایران محسوب می شود که آثار زیان بار آن در تمام عرصه های اقتصادی، اجتماعی و حتی سیاسی- امنیتی به نحوی منعکس می شود. چون میزان آب ناشی از بارش یکی از مولفه های اصلی برنامه ...