Samsung RT34M User Manual download pdf (Page 73)

Dushyant Patel LC-MS/MS Method

S.K.P.C.P.E.R., Kherva 61 M .Pharm. Thesis

Table No. 4.21 continue

HQC (B257-08) 17289568 5028727 3.438 4.471 99.36

HQC (B257-08) 18163954 5325605 3.411 4.435 98.56

HQC (B257-08) 17342054 5405325 3.208 4.172 92.71

HQC (C001-08) 13654431 5373683 2.541 3.303 73.40

HQC (C001-08) 18340751 5109316 3.590 4.668 103.7

HQC (C001-08) 18048440 5248333 3.439 4.472 99.38

HQC (D001-08) 17843374 5101723 3.498 4.548 101.1

HQC (D001-08) 14638922 5142617 2.847 3.701 82.24

HQC (D001-08) 17966219 5142285 3.494 4.543 100.9

Underlined Values were outside the acceptance criteria of 85 – 115 % of their Nominal concentration.

4.3.10 Stability:

4.3.10.1 Stock solution stability.

¾ Stock solution stability was determined by comparing the peak areas of freshly prepared

samples (comparison samples) with stability samples.

Stock solution stability of GBP (93 hrs at room temp. for main stock):

¾ GBP main stock solution was found to be stable at room temperature for 93 hrs with %

mean change of 4.10 (Table No.4.22).

Stock solution stability of LEV (93 hrs at room temp. for main stock):

¾ LEV (IS) main stock solution was found to be stable at room temperature for 93 hrs with

% mean change of -1.29 (Table No. 4.23).

Stock solution stability of GBP (93 hrs at 2-8˚C for main stock):

¾ GBP main stock solution was found to be stable at 2-8˚C for 93 hrs with % mean change

of 5.38 (Table No.4.24).

Stock solution stability of LEV (93 hrs at 2-8˚C for main stock):

¾ LEV Main stock solution was found to be stable at 2-8˚C for 93 hrs with % mean change

of -2.35 (Table No.4.25).

TABLE NO: 4.22

MAIN STOCK SOLUTION STABILITY OF GBP (93 hrs at room temp.)

Sr. No.

GBP(12.00 µg/ml)

Comp. sample area Stability sample area

1 37965530 39658803

2 37885805 39813714

3 38242777 39070867

4 38073735 39884983

5 37874277 39330670

6 38241913 39890216

n 6 6

Mean 38047340 39608209

SD 167026 336657

% CV 0.44 0.85

% Mean Change 4.10

1 2 ... 68 69 70 71 72 73 74 75 76 77 78 ... 92 93

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