I have 1 gram of Diphenylamine and want to make a 10,000 or
1000 ppm solution in methanol. How do I make this?
Answer Posted / suresh reddy.b
1 gram of DPA dissolved in 1000ml of methanol gives
1000ppm.it is ok in case of purity of DPA is 100 % if it is
50% it is 2 gram of DPA dissolved in 1000ml of methanol
gives 1000ppm.
Is This Answer Correct ? | 13 Yes | 4 No |
Post New Answer View All Answers
Qc interview questions
what type of question will ask in the interview of lab chemist.
As per ICH related substances stability trend limit from initial to shelf life
If we have 5 strength which is not dose proportinate and excipients also diffrent in each strength then how we can proceed for Force degradation? and excipient are same but not dose propotinate the how FD?
If inhouse hplc related substance method is completly diffrent from Usp for finished proďuct with diffrent impurities then how require to prove method equivalecy?
how to develop the icp ms method? Application of icp ms?
what is the principle involved in turbidometry and nephelometry ?
why are measure gas flow " ml " in Gas chromatography
[3/30, 13:29] Manoj P Venkatpurwar: How hplc column selection according to structure? How mobile phase buffer selection on molecule structure?
how we can identify the impurity is coming below loq at transfering site?
how pda detector works over uv?
in which situation ion pair require to use?
IS THERE ANY EQUIPMENT TO CHECK AND CALCULATE THE POLARITY OF A LIQUID?
what is %labelled amount in content uniformity of dosage unit and its calculation?
What is third generation HPLC Columns?