Step 1: Understanding the Question:
This question tests knowledge of instrumental methods used for pesticide residue analysis.
Step 2: Detailed Explanation:
The instrumental methods for pesticide residue analysis include chromatographic techniques such as:
- TLC (Thin Layer Chromatography): A simple separation technique.
- GLC (Gas Liquid Chromatography): Used for volatile pesticide residues.
- HPLC (High Performance Liquid Chromatography): Used for non-volatile pesticide residues.
All three are chromatographic techniques used for pesticide residue analysis.
Thus, all A, B, and C are correct.
Step 3: Final Answer:
Thus, the correct answer is All A, B and C, which corresponds to option (B).
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