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![Quantitative detection of organic mercury in whole blood using derivatization and gas chromatography-negative chemical ionization-mass spectrometry](https://image.oaes.cc/ff16ae45-cdf1-4571-8980-c09fbda15910/5392.fig.4.jpg)
Figure 4. (A): Chromatogram of different halide salts of organic mercury and (B): mass spectra of MeHgCl, (C): MeHgBr, and (D): MeHgI. Organic mercuries in standard solutions were extracted using aqueous solutions containing chloride, bromide, and iodide ions. Spectra were obtained using negative chemical ionization.