chemical ionization造句怎么写

1、Rapid detection of powdered antibiotics by surface desorption atmospheric pressure chemical ionization tandem mass spectrometry

3、Determination of polybrominated diphenyl ethers in pine needles using ultrasonic-assisted extraction and gas chromatography-negative chemical ionization-mass spectrometry

5、Determination of polybrominated diphenyl ethers and polybrominated biphenyls in sediment from Xiamen sea by gas chromatography-mass spectrometry-negative chemical ionization and gas chromatography-electron capture detector

7、Determination of 12 azole fungicide residues in beans and corn by offline disperse solid phase extraction and gas chromatography-negative chemical ionization mass spectrometry

4、Determination of free solanesol in tobacco by liquid chromatography and atmospheric pressure chemical ionization ion trap mass spectrometry

2、Determination of polybrominated diphenyl ethers in human blood with gas chromatography-negative chemical ionization-mass spectrometry

6、Determination of 20 kinds of pesticide residues in soybeans and corn using gas chromatography-negative chemical ionization mass spectrometry coupled with offline disperse solid-phase extraction