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Extraction of Tetracyclines using strata X-CW on Kinetex 2.6µm C18 50 x 2.1mm ID by LCMS

Sample Preparation Details

Part No:8B-S035-TBJ
Solid Phase Extraction (SPE) procedure:Note: The solvent volumes shown below are for a 30 mg bed mass. The solvent volumes will need to be adjusted for a smaller or larger bed mass.
Load:500 ul of plasma (spiked with analyte and IS) diluted with 500 uL of buffer (100 mM Ammonium acetate pH 5.5)
Dry:Dry for 2 mins at 10" of Hg
Final Prep and Analysis: Inject: 5 µL on HPLC / Mass Spectrometer (MS) @ amu (ambient)

Analytes:

Name Spiked
Conc.
Log P pKa % Rec %RSC (n=0)
1 Oxytetracycline 1.25 
2 Tetracycline 1.25 
3 Chlorotetracycline 1.25 

Application Detail (App ID: 18640)

Part No:00B-4462-AN
Dimensions:50 x 2.1 mm ID
Elution Type:Gradient
Elution A:0.1% Formic acid in H2O
Elution B:0.1% Formic acid in ACN
Gradient Profile:
Step No. Time (min) Pct A Pct B
1 0 97 3
2 0.24 97 3
3 3.02 5 95
4 3.3 5 95
5 3.31 97 3
6 4.97 97 3

Flow Rate:450 µL/min
Col. Temp: 25 °C
Detection: Mass Spectrometer (MS) @ amu (22°C)
Note:SecurityGuard™ ULTRA Guard Cartridge System extends column lifetime.
- SecurityGuard ULTRA Cartridges, UHPLC C18 for 2.1mm ID Columns, 3/Pk Part No.: AJ0-8782
- Holder Part No.: AJ0-9000

Analyte Details

Analyte Detail not available

1
Oxytetracycline
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2
Tetracycline
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3
Chlorotetracycline
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