Answer / cristopher c. buban

The unit parts per million (ppm) is numerically equivalent to mg/L. So 1000 ppm of methylene blue solution is equal to 1000 mg/L. Weigh 1000 mg or 1 g of methylene blue and dissolve it, let me say with 100 mL of distilled water and adjust the final volume of the solution to 1L.

Answer / cristopher c. buban

The unit parts per million (ppm) is numerically equivalent to mg/L. So 1000 ppm of methylene blue solution is equal to 1000 mg/L. Weigh 1000 mg or 1 g of methylene blue and dissolve it, let me say with 100 mL of ethanol and adjust the final volume of the solution to 1L. You can also prepare 0.1 g of methylene blue and dissolve it with 100 mL of ethanol. That 's 1000 ppm too.

why hexadecane is used in calibration of FID IN GC THERE IS NO REMAINING SOLVENTS

1 Answers   DRL, Hetero, MSN,

---

what is the origin to prepare standard operating procedure

0 Answers  

---

Who discovered X-ray

2 Answers   Huntsman Corporation,

---

How to calculate coreletion coefficient

0 Answers  

---

What r the limitatoins of uv visible spectroscopy ? Why Water use in blank standard for uv visible spectroscopy ?

4 Answers   Cipla, Reddy Labs,

---

what is the meaning of linearity,principle of co-relation coefficient?

3 Answers  

---

What is difference between known and unknown impurities

1 Answers   Sun Pharma,

---

Why we are having specification 100% above in case of assay as there is only 100% of compound?

2 Answers   MSN Pharma, Nectar Lifesciences,

---

How we performed the force degradation for drug substance, is any specific guideline is available for each parameter(Acidic, basic, oxidation,heat)? what conditions you mentained for above parameters.

0 Answers  

---

if content uniformity passing but dissolution varrying then what is next step?

0 Answers  

---

what is principal of karl ficher instrument!

12 Answers   Alkem Labs, USV,

---

what is the difference between potentiometric assay and hplc assay

2 Answers   Parabolic,

---