Answer Posted / sa
First, take a clean wire loop of Platinum or nickel-
chromium . They may be cleaned by dipping in hydrochloric
or nitric acid, followed by rinsing with distilled or
deionized water.
Test the cleanliness of the loop by inserting it into a
bunsen burner flame. If a burst of color is produced, the
loop was not sufficiently clean.
Ideally, a separate loop is used for each sample to be
tested, but a loop may be carefully cleaned between tests.
The clean loop is dipped in either a powder or solution of
an ionic (metal) salt. The loop with sample is placed in
the clear or blue part of the flame and the resulting color
is observed.Na+ plus gives dazzling golden yellow flame,Ka+
gives crimson red & when look through blue glass gives
purple colour. Ba salt gives apple green colour , Ca++
gives brick red colour,etc
In this way Flame test is done.
| Is This Answer Correct ? | 18 Yes | 3 No |
Post New Answer View All Answers
How to determine water content of bis tetrazole amine mono ammonium salt
mode of absorption in alimentary canal?
if identification threshold crosses the limits then what next step?
For titration in anhydrous media with perchloric acide, if lack of titrator, Which indicator is been used for replacement. How calculate pH of test solution to choose suitable indicator?
why should we perform dissolution PVT calibration only by UV spectrometer, not by HPLC ?
What is split ratio in Gc? Splitless? how requirr to select?
Why dissolution test is not performed in all of the products
WHY pKa value is more important than pH value of the mobile phase in HPLC?
How require to develop GC method? how to select diluent, GAS, column selection and other chromatographic conditions?
A ha tc is actual defination of retention time?
How will u perform degradation study in detectors other thann PDA in HPLC Methodology
before starting analytical method valodation what you checking? and how giving preference to start validation?
why cone formation during dissolution?
UV and PDA detector, which have less signal to noise ratio?
process of Diclofenac sodium,IP.
