Product category
英文名稱:Native Halogenated Carbazoles Solution/Mixture
CCZ-3 | 3-Chloro-9H-carbazole | 3-氯-9H-咔唑 |
CCZ-36 | 3,6-Dichloro-9H-carbazole | 3,6-二氯-9H-咔唑 |
CCZ-1368 | 1,3,6,8-Tetrachloro-9H-carbazole | 1,3,6,8-四氯-9H-咔唑 |
CCZ-2367 | 2,3,6,7-Tetrachloro-9H-carbazole | 2,3,6,7-四氯-9H-咔唑 |
BCZ-3 | 3-Bromo-9H-carbazole | 3-溴-9H-咔唑 |
BCZ-27 | 2,7-Dibromo-9H-carbazole | 2,7-二溴-9H-咔唑 |
BCZ-36 | 3,6-Dibromo-9H-carbazole | 3,6-二溴-9H-咔唑 |
BCZ-136 | 1,3,6-Tribromo-9H-carbazole | 1,3,6-三溴-9H-咔唑 |
BCZ-1368 | 1,3,6,8-Tetrabromo-9H-carbazole | 1,3,6,8-四溴-9H-咔唑 |
1-B-36-CCZ | 1-Bromo-3,6-dichloro-9H-carbazole | 1-溴-3,6-二氯-9H-咔唑 |
18-B-36-CCZ | 1,8-Dibromo-3,6-dichloro-9H-carbazole | 1,8-二溴-3,6-二氯-9H-咔唑 |
MCCZ-36 | 3,6-Dichloro-9H-[13C12]carbazole | 3,6-二氯-9H-[13C12]咔唑 |
MCCZ-1368 | 1,3,6,8-Tetrachloro-9H-[13C12]carbazole | 1,3,6,8-四氯-9H-[13C12]咔唑 |
CBCZ-MXB | Native Halogenated Carbazoles Solution/Mixture(1-11項(xiàng)混標(biāo)) | 天然鹵代咔唑11種混標(biāo)溶液 |
鹵代咔唑(PHCZs)是咔唑環(huán)上的氫原子被鹵原子 (F、Cl、Br、I)取代后產(chǎn)生的一類化合物。從結(jié)構(gòu)上看,和多鹵代-二苯并-呋喃(PXCDFs,一類二噁英物質(zhì))非常相似(圖1),PHCZs具有潛在的環(huán)境持久性、生物累積性與生物毒性。PHCZs的來源和生成機(jī)理復(fù)雜,主要分為自然來源(生物酶催化鹵化)和人為來源(如光電材料、靛藍(lán)染料生產(chǎn)過程產(chǎn)生的副產(chǎn)物)。
同傳統(tǒng)二噁英類似,PHCZs在環(huán)境介質(zhì)中濃度較低,同時(shí)基質(zhì)復(fù)雜,對(duì)樣品前處理和儀器分析提出了較高的要求。