Determination of total alkaloids in Zhichuanling injection and alkaloids in Kunming mountain crabapple

Determination of total alkaloids in Zhichuanling injection

【Prescription】Ephedra and Yangjinhua Bitter Almond Forsythia

[Content determination] Total alkaloids: accurately measure 10ml of this product, place it in a separatory funnel, add 1mol/L NaOH sodium hydroxide solution (alkali reagent to free the alkaloids) 0.

The total alkaloid content of this product per 1ml should be 0.

Calculation formula:

In the formula, is the molar ratio of bovine base and sulfuric acid; CA is the concentration of sulfuric acid standard solution; CB is the concentration of sodium hydroxide solution; VA is the volume of added sulfuric acid standard solution (ml); VB is the consumed hydroxide The volume of the sodium solution (ml); M is the molecular weight of the main alkaloid contained; Ms is the weight of the sample (g)

Determination of Alkaloids in Kunming Mountain Crabapple

[Prescription] Kunming Mountain Begonia 2500g

[Content determination] Take 60 tablets of this product, remove the sugar coating, accurately weigh, grind finely, take about 7g, accurately weigh it, place it in a 200ml conical flask, add a proper amount of diatomaceous earth (to make the sample evenly dispersed) 1.

Calculation formula:

In the formula, W1 is the weight of the test product (g); W2 is the weight of the weighing bottle (g); W3 is the weight (g) of the weighing bottle + residue weighed to a constant weight

Each tablet of this product contains not less than 1.