Volumetric determination of niobium in ferroniobium with oxinate method
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چکیده
منابع مشابه
multiwavelength pectrophotometric determination of stability constants of 4-(2– thiazolylazo) resorcinol (tar) with la3+, y3+ and th4+ in organic-water mixed solvents by chemometrics method & simultaneous spectrophotometric determination of lead, copper and nickel using xylenol orange by partial least squares calibration method
تشکیل کمپلکس های tarبا یون های لانتانیم, ایتریم و توریم در دمای 25 درجه، قدرت یونی ثابت 0.1 مولار و در ph ثابت در مخلوط حلال های اتانول – آب و استونیتریل – آب با استفاده از روش های اسپکتروفوتومتری مورد بحث و بررسی قرار گرفت. داده های اسپکتروفوتومتری با استفاده از نرم افزار squad پردازش شدند تا ثابت های تشکیل کمپلکس اندیکاتور – فلز را محاسبه کند. نتایج نشان می دهد که درصد حلال آلی در مخلوط حلال ...
15 صفحه اولA Volumetric Method for Determination of Potassium in Biological Materials
During the past 3 years we have carried out analyses of tissues for potassium in this laboratory using the separation by chloroplatinic acid. For 1 year potassium has been estimated by a Volhard titration of the chlorine in KzPtC16 separated by the usual procedure. Because the method seems more accurate and convenient than previous titrimetric methods, a description is warranted. SolulionsSolut...
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due to the limiting workspace of parallel manipulator and regarding to finding the trajectory planning of singularity free at workspace is difficult, so finding a best solution that can develop a technique to determine the singularity-free zones in the workspace of parallel manipulators is highly important. in this thesis a simple and new technique are presented to determine the maximal singula...
15 صفحه اولVolumetric determination of columbium.
The quantitative determination of columbium based on reduction by amalgamated zin c and reox idation with potassium permanganate has, in general, produced results that lack both accuracy and precision. A study of t he various factors involved indicates that essential conditions requ ire adequate duration of reduction in t he presence of an excess of zinc and a proper concentration of both acid ...
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ژورنال
عنوان ژورنال: BUNSEKI KAGAKU
سال: 1967
ISSN: 0525-1931
DOI: 10.2116/bunsekikagaku.16.1156