Determination method of potassium chloride and sodium chloride content in potassium chloride and sodium chloride injection
A technique for measuring potassium chloride and sodium chloride, which is applied in the field of determining whether the content of potassium chloride and sodium chloride in potassium chloride and sodium chloride injection meets the quality standard, and can solve the problem of inconspicuous titration end point jumping phenomenon, Complicated operating procedures, secondary pollution and other problems, to achieve the effect of reducing secondary pollution, easy to use, and less sampling volume
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Embodiment 1
[0032] The mensuration of embodiment 1 potassium chloride content
[0033] 1) Preparation of blank test solution:
[0034] Dissolve 0.9g of sodium chloride with water and dilute to 100mL, shake well, accurately measure 5.0mL of the resulting solution, put it in a 50mL measuring bottle, add water to dilute to the mark, shake well, and obtain a blank test solution;
[0035] 2) Preparation of reference substance solution:
[0036] Precisely measure 5.0 mL of potassium standard solution ([National Standard Solution GBSG62020-90 (2601)] National Iron and Steel Materials Testing Center, General Iron and Steel Research Institute) with a concentration of 1000 μg / mL and a medium of 10% HCl, and place it in a 50 mL measuring bottle , dilute to the mark with water, shake well to obtain a solution with a concentration of 100μg / mL, accurately measure 1.0mL, 2.0mL, 3.0mL, 4.0mL and 5.0mL of the 100μg / mL solution, place them in 100mL measuring bottles, and then Accurately add 5.0mL of the ...
Embodiment 2
[0077] The mensuration of embodiment 2 sodium chloride content
[0078] 1) Preparation of blank test solution:
[0079] Dissolve 0.3g of potassium chloride with water and dilute to 100mL, shake well, accurately measure 5.0mL of the resulting solution, put it in a 100mL measuring bottle, add water to dilute to the mark, shake well, and obtain a blank test solution;
[0080] 2) Preparation of reference substance solution:
[0081] Precisely measure 5.0 mL of sodium standard solution ([National Standard Solution GBSG62020-90 (2601)] National Iron and Steel Materials Testing Center, General Iron and Steel Research Institute) with a concentration of 1000 μg / mL and a medium of 10% HCl, and place it in a 100 mL measuring bottle , dilute to the mark with water, shake well to obtain a solution with a concentration of 50μg / mL, accurately measure 1.0mL, 2.0mL, 3.0mL, 4.0mL and 5.0mL of the 50μg / mL solution, place them in 100mL measuring bottles, and then Accurately add 1.0mL of the bla...
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