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2,2-二溴-2-氰基乙酰胺(标准品) BIOC-046N100mgAccuStandard
2-对氯苄基吡啶(标准品) FRS-019N10mgAccuStandard
2,3-二氢-2,2甲基香豆酮-7-醇(标准品) P-628N10mgAccuStandard
2,6-氨基-4-硝基甲苯(标准品) M-8330-ADD-131mLAccuStandard
2,5-二甲基苯甲醛-DNPH(标准品) M-8315-R-DNPH-091mLAccuStandard
2,2',3,4,4',5,6'-七氯联苯(标准品) C-182S1mLAccuStandard
2-氟萘(标准品) M-625-111mLAccuStandard
2-十一酮(标准品) P-415S1mLAccuStandard
2-甲-4-氯丁酸甲酯(标准品) P-371N10mgAccuStandard
2-溴氯苯(标准品) M-624-SS-121mLAccuStandard
2-巯基苯并噻唑(标准品) M-6401mLAccuStandard
2,3'-二氯联苯(标准品) C-006S-TP1mLAccuStandard
2,2',3,5 -四氯联苯(标准品) C-043S1mLAccuStandard
2,2',3,3',5-五氯联苯(标准品) C-083S-TP1mLAccuStandard
2种内标 M-528-IS-PAK5x1mLAccuStandard
2,4-二氯苯甲醚(标准品) M-552-R-011mLAccuStandard
2,3',4,6-四氯联苯(标准品) C-069S-TP1mLAccuStandard
2,2-二氯丙烷(标准品) M-502-32N1gramAccuStandard
2,3,4',5,6-五氯联苯(标准品) C-117S1mLAccuStandard
2,2',3,3',4,5,5',6-八溴联苯醚(标准品) BDE-198S1mLAccuStandard
2,2',3,3',5,5'-六氯联苯(标准品) C-133S-TP1mLAccuStandard
2,2',3,5,6-戊氯联苯(标准品) C-093S-TP1mLAccuStandard
2-溴-4,6-二硝基苯胺(标准品) L-017N100mgAccuStandard
2,2',3,4',5,6,6'-七溴联苯醚(标准品) BDE-188S1mLAccuStandard
2,3',5',6-四溴联苯醚(标准品) BDE-073S1mLAccuStandard
2,4-二氯苯甲醇(标准品) BIOC-081N100mgAccuStandard
2,3,5 - 三氯苯基-4-硝基苯基醚(标准品) E-015S1mLAccuStandard
21组分苯系物混标 M-502E1mLAccuStandard
2-苯基苯酚钠盐四水合物(标准品) BIOC-022N100mgAccuStandard
2,4,5-涕酸丁氧乙酯(标准品) P-441NB-100100mgAccuStandard
2,5-二叔戊基氢醌,TECH级(标准品) PLAS-AX-016N50mgAccuStandard
2.5-双(5-叔丁基-2-苯并恶唑)噻吩,TECH级(标准品) PLAS-AX-098N50mgAccuStandard
2,4,6-三[双(甲氧基甲基)氨基]-1,3,5-三嗪,TECH级(标准品) PLAS-CL-003S1mLAccuStandard
2,3,3',5'-四氯联苯(标准品) C-058S-TP1mLAccuStandard
2,2',3,5',6-戊氯联苯(标准品) C-095S-TP1mLAccuStandard
2-灭草隆(标准品) P-633S1mLAccuStandard
2,3',4,4',5',6-六溴联苯醚(标准品) BDE-168S1mLAccuStandard
2,2',3',4,5-五氯联苯(标准品) C-097S-TP1mLAccuStandard
2,2',4,6'-四氯联苯(标准品) C-051S-TP1mLAccuStandard
2,2',3,3',5,6-六氯联苯(标准品) C-134S-TP1mLAccuStandard
2,4 - 二氯甲基酯(标准品) M-515-SS1mLAccuStandard
2,4,5-涕丙酸-2-乙基己基酯(标准品) P-728S1mLAccuStandard
2-羟基去乙基莠去津(标准品) P-544S1mlAccuStandard
2 - 异丙基氨基-4,6 - 二氯-S-三嗪(标准品) P-635NB-100100mgAccuStandard
#2 柴油 (25%风化)(标准品) FD2-W25-R1-10X1mLAccuStandard
2,6-二氨基吡啶(标准品) DYE-103S1mLAccuStandard
2,2',3,3',5-五溴联苯醚(标准品) BDE-083S1mLAccuStandard
2,4-二氯苯氧乙酸甲酯(标准品) M-8150-011mLAccuStandard
2,4-二氯苯基-3-甲基-4-硝基苯基醚(标准品) E-020S1mLAccuStandard
2-羟基-2',3',5',6'-四氯联苯(标准品) HPCB-4002N10mgAccuStandard