IN pH CALIBRATION,CALIBRATION IS DONE FOR pH METER OR ELECTRODE?HOW WILL YOU JUDGE THAT THE METER TO BE CALIBRATED WITH 4,7,9.2 BUFFERS?EXPLAIN TEMPERATURE EFFECTS ON pH.
1 10251AT WHAT CONDITIONS WILL YOU ANALYSE A SAMPLE,WHICH ARE PRESERVED AT OTHER THAN THE AMBIENT CONDITIONS?(ie COLD STORAGE SAMPLES BELOW 20* CENTIGRADE?
1598In standard weight box used for calibration of analytical balance there are two numbers (Qty) of 20mg, 200mg,2.oGM weights. Why?
2 14632How to calculate signal to noise ratio by this formula 2H/h where h from where and how to measure
2 9315How do we fix the sample concentaryion in hplc method development. what is the basis?Thanks in advance
4 19236Suppose we prepared pH buffer solution in lab.and calibrate against NIST solution, and same shall going to used upto 30 days. is it possible to stable pH and apperance ? suggest ?
1 5324Post New Analytical Chemistry Questions
WHY given much noise PDA dector then VWD Dector
Home heating oil or furnace oil what is made from? Can (base oil plus diesel/kerosen) = home heating oil?
Explain the relations between number of carbon atoms in alkanes and retention time ?
in gas chromatography what is the difference between gas flow rate and average linear velocity ?
How can I develope method of dissolution by HPLC OR UV
Which parameters require to do in tech transfer?
identification is for unknown? qualification for known? reporting for LOQ?
acceptance criteria for lod & loq by standard deviation of response and slope??
Describe your field experience sample type collected,sample techniques,field measurements taken and equipment used?
I have compare C2H2-air and C2H2-N2O flame AAS on determination calcium. Both use same range of std to plot calibration curve. (2-6ppm) When i measure the sample with phosphate, KCl and LaCl, C2H2-N2O flame give false positive result, around 0.5ppm. When i measure the sample with phosphste, KCl and EDTA. C2H2-N2O flame also give 0.5ppm false positive. But both above mentioned sample would not give false positive when measured by C2H2-air flame. What is the reason?
How do we quantify crystaline and amarpous forms by using (NMR, XRD)spectroscopic techniques? Which any others instruments are useful for this quantification? explain
sop of a uv visible spectrophotometer double beam elico model
What is viod volume and peak purity in HPLC?
A ha tc is actual defination of retention time?
How to calibration of the uv spectroscopy and its test?
