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ESI-MS /MS: target determination conditions of antibiotics was detected by ESI-MS /MS reaction positive ion selective determination of compounds, a parent of two sub ion response and, detection of ions and the ion impact energy (see Table 1 automatic optimization function by injection pump directly into the sample, using mass spectrometry were optimized respectively. The main ESI-MS gain) the operating parameters of /MS: spray voltage of + 4000 V, capillary temperature 290 ¡æ, Source CID collision energy of 10 V, CID collision gas pressure (argon) 1 mTorr
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