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Selection of analysis conditions for determination of 5 kinds of benzimidazole drug residues in milk and milk powder-optimization of instrument conditions

 Last Update: 2021-10-11
 Source: Internet
 Author: User

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(3) Optimization of instrument conditions

1) Chromatographic conditions

Such drugs can be separated and determined by reversed-phase liquid chromatography column, using chromatographic column C ₁₈ column (50mm×2.

2) Mass spectrometry conditions

First, use 1g/mL of various benzimidazole drug single-label solutions in a flow injection mode to perform a full scan of precursor ions in positive ion mode, adjust the ionization voltage and cone voltage, and determine the molecules of each benzimidazole drug Then, perform a full scan of its product ions, optimize the product ions and collision energy, and determine the two most abundant product ions as monitoring ions, see Table 17-4

Figure 17-3 Total ion current chromatograms of five benzimidazole drugs

Thiabendazole , 3.

Related Links: Selection of Analysis Conditions for Determination of 5 Benzimidazole Drug Residues in Milk and Milk Powder-Determination of Purification Method

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