气相色谱法(Gas Chromatography,GC)是一种分离和分析气体或挥发性液体混合物中各个组分的技术。方法基于混合物中各组分在气态固定相和流动相之间的相互作用差异来实现分离。
气相色谱法具有广泛的线性范围和良好的重复性,在化学、生物化学、环境科学、食品科学和石油化工等领域有着广泛的应用。
气相色谱柱是气相色谱法分离混合物中组分的关键组件,色谱柱的选择对分离效果有很大影响。
百灵威推出J&K-Abel 高性价比气相色谱柱,采用独特的表面处理工艺和键合交联技术,确保了高惰性填料、高柱效、低流失以及长使用寿命,同时精准控制了容量因子和保留指数,实现了良好的重复性。
产品名称 | 货号 |
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JA-1, 30m × 0.25mm × 0.25μm JA-1 气相色谱柱, 30m × 0.25mm × 0.25μm | S01300B-01BE |
JA-1, 30m × 0.32mm × 0.25μm JA-1 气相色谱柱, 30m × 0.32mm × 0.25μm | S01300B-01CB |
JA-1, 60m × 0.25mm × 0.25μm JA-1 气相色谱柱, 60m × 0.25mm × 0.25μm | S01600B-01BE |
JA-1, 60m × 0.53mm × 5.00μm JA-1 气相色谱柱, 60m × 0.53mm × 5.00μm | S016050-01EC |
JA-5, 30m × 0.25mm × 0.25μm JA-5 气相色谱柱, 30m × 0.25mm × 0.25μm | S01300B-05BE |
JA-5, 30m × 0.32mm × 0.25μm JA-5 气相色谱柱, 30m × 0.32mm × 0.25μm | S01300B-05CB |
JA-5, 30m × 0.32mm × 0.50μm JA-5 气相色谱柱, 30m × 0.32mm × 0.50μm | S01300E-05CB |
JA-5, 60m × 0.25mm × 0.25μm JA-5 气相色谱柱, 60m × 0.25mm × 0.25μm | S01600B-05BE |
JA-5MS, 30m × 0.25mm × 0.25μm JA-5MS 气相色谱柱, 30m × 0.25mm × 0.25μm | S01300B-15BE |
JA-5MS, 60m × 0.32mm × 0.25μm JA-5MS 气相色谱柱, 60m × 0.32mm × 0.25μm | S01600B-15CB |
JA-624, 30m × 0.32mm × 1.80μm JA-624 气相色谱柱, 30m × 0.32mm × 1.80μm | S01301H-62CB |
JA-1701, 60m × 0.32mm × 0.25μm JA-1701 气相色谱柱, 60m × 0.32mm × 0.25μm | S01600B-61CB |
JA-FFAP, 30m × 0.25mm × 0.25μm JA-FFAP 气相色谱柱, 30m × 0.25mm × 0.25μm | S01300B-21BE |
JA-INOWAX, 30m × 0.32mm × 0.25μm JA-INOWAX 气相色谱柱, 30m × 0.32mm × 0.25μm | S01300B-20CB |
JA-INOWAX, 30m × 0.32mm × 0.50μm JA-INOWAX 气相色谱柱, 30m × 0.32mm × 0.50μm | S01300E-20CB |
溶剂性能对分析结果的准确性有重大影响,溶剂品质是实现清晰、精准和可重复的分析结果的关键。
百灵威农残级溶剂专为气相色谱痕量分析开发,经过严格的毛细管GC-FID和GC-ECD测试,采用亚微米过滤,半挥发物杂质含量低,适用于农药、防腐剂及其它半挥发性环境污染物分析,同时也是二噁英、呋喃和多氯联苯分析用的理想溶剂。
品名 | CAS | 货号 |
---|---|---|
Acetonitrile, 99.9%, ACS/HPLC Certified 乙腈 , 99.9% , ACS/HPLC级 | 75-05-8 | 168171 |
Cyclohexane, 99.7%, ACS/HPLC Certified 环己烷 , 99.7% , ACS/HPLC级 | 110-82-7 | 220132 |
N,N-Dimethylformamide, 99.9%, ACS/HPLC Certified N,N-二甲基甲酰胺 , 99.9% , ACS/HPLC级 | 68-12-2 | 133682 |
Ethanol, 99.9%, ACS/HPLC Certified 乙醇 , 99.9% , ACS/HPLC级 | 64-17-5 | 258449 |
n-Hexane, 95%, ACS/HPLC Certified 正己烷 , 95% , ACS/HPLC级 | 110-54-3 | 208930 |
Isopropanol, 99.9%, ACS/HPLC Certified 异丙醇 , 99.9% , ACS/HPLC级 | 67-63-0 | 201015 |
Methanol, 99.9%, ACS/HPLC Certified 甲醇 , 99.9% , ACS/HPLC级 | 67-56-1 | 122729 |
1-Methyl-2-pyrrolidinone, 99.7%, ACS/HPLC Certified 1-甲基-2-吡咯烷酮 , 99.7% , ACS/HPLC级 | 872-50-4 | 494322 |
Trifluoroacetic acid, 99.9%, HPLC grade 三氟乙酸 , 99.9% , HPLC级 | 76-05-1 | 134753 |
品名 | CAS | 货号 |
---|---|---|
1-Methyl-2-pyrrolidinone, 99.8%, for headspace gas chromatography 1-甲基-2-吡咯烷酮 | 872-50-4 | 917380 |
Dimethyl sulfoxide, 99.99%, for headspace gas chromatography 二甲基亚砜 | 67-68-5 | 950646 |
N,N-Dimethylacetamide, 99.99%, for headspace gas chromatography N,N-二甲基乙酰胺 | 127-19-5 | 949095 |
N,N-Dimethylformamide, 99.99%, for headspace gas chromatography N,N-二甲基甲酰胺 | 68-12-2 | 979884 危化品 |
Water, for headspace gas chromatography 水 | 7732-18-5 | 932573 |
产品名称 | 货号 |
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Crimp-top headspace vials, 10 ml, 20 mm, clear, 22.5×46 mm, first grade hydrolyzed glass 钳口顶空瓶 | 968631 |
Crimp-top headspace vials, 20 ml, 20 mm, clear, round bottom, 22.5×75.5 mm , first grade hydrolyzed glass 钳口顶空瓶 | 923229 |
Crimp-top headspace vials, 20ml, 20 mm, clear, round bottom, 22.5X75.5mm 钳口顶空瓶 | 921940 |
Crimp-top headspace vial caps and septa, 20 mm, silver aluminum cap, natural PTFE/natural silicone septum 钳口顶空瓶组合盖垫 | 2751592 |
Precision screw thread headspace vials, 20 ml, 18 mm, amber, round bottom, 22.5X75.5 mm, USP type 1 精密螺纹顶空瓶 | 928370 |
Magnetic screw cap for headspace vials, 18 mm, silver, open, metallic, blue PTFE/white silicone septum, center hole 8 mm 螺口顶空瓶磁性瓶盖 | 975320 |
顶空固相微萃取(Headspace Solid-Phase Microextraction,HS-SPME)是一种用于气相分析的前处理技术,固相微萃取探针萃取富集在气、液或固体样品中的化合物后,可直接替代进样针进行气相色谱进样,此过程不使用有机溶剂。
产品名称 | 货号 |
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SPME fibers (CAR/PDMS), 75 μm, 1 cm, metal alloy fiber, black hub plain, for use with manual holder 固相微萃取萃取头 活性炭/聚二甲基硅氧烷(CAR/PDMS) | 9117004 |
SPME fibers (PDMS/DVB), 65 μm, 1 cm, metal alloy fiber, yellow hub plain, for use with autosampler 固相微萃取萃取头 聚二甲基硅氧烷/聚二乙烯基苯(PDMS/DVB) | 947194 |
SPME fibers (PDMS), 100 μm, 1 cm, metal alloy fiber, white hub plain, for use with manual holder 固相微萃取萃取头 聚二甲基硅氧烷(PDMS) | 9117003 |
SPME fibers (PDMS/DVB), 50/30 μm, 1 cm, metal alloy fiber, red hub plain, for use with autosampler 固相微萃取萃取头 三层复合(DVB/CAR/PDMS) | 916797 |
SPME fibers (CW/DVB), 70 μm, 1 cm, metal alloy fiber, blue-black hub plain, for use with autosampler 固相微萃取萃取头 聚乙二醇/二乙烯基苯(CW/DVB) | 953342 |
SPME fibers (PA), 85 μm, 1 cm, metal alloy fiber, green hub plain, for use with autosampler 固相微萃取萃取头 聚丙烯酸酯(PA) | 939015 |
SPME manual sets, include SPME fiber (1, optional), SPME handle, SPME guider, SPME fiber holder, metal bath, SPME stir bars (3), 20 ml headspace vials (3) 固相微萃取手动套装(不含磁力搅拌器1122416或907967, 需单独采购) | 9116972 |
部分无法直接通过GC进行分离鉴定的化合物可通过衍生化反应改变性质,如进行硅烷化、酰基化、烷基化等。
百灵威可提供近300种GC衍生化试剂,纯度均≥95%,衍生效率高,副产物易挥发,满足多种衍生化反应需求。
品名 | CAS | 货号 |
---|---|---|
N,O-Bis(trimethylsilyl)acetamide, 95% N,O-双(三甲基硅基)乙酰胺 | 10416-59-8 | 447636 |
Hexamethyldisilazane, 99%, J&KSeal 六甲基二硅氮烷 | 999-97-3 | 996309 危化品 |
Chlorotrimethylsilane, 99%, J&KSeal 三甲基氯硅烷 | 75-77-4 | 458784 危化品 |
N-Trimethylsilylimidazole, 98% N-三甲基硅基咪唑 | 18156-74-6 | 600909 |
Trifluoroacetic anhydride, 99% 三氟乙酸酐 | 407-25-0 | 199332 危化品 |
1-(Heptafluorobutyryl)imidazole, 97% 1-(七氟正丁酰基)咪唑 | 32477-35-3 | 100530 |
Heptafluorobutyric anhydride, 98% 七氟丁酸酐 | 336-59-4 | 120251 |
α-Bromo-2,3,4,5,6-pentafluorotoluene, 98% α-溴-2,3,4,5,6-五氟甲苯 | 1765-40-8 | 278435 |
N,N-Dimethylformamide dimethyl acetal, 95% N,N-二甲基甲酰胺二甲基缩醛 | 4637-24-5 | 191255 |
2,2-Dimethoxypropane, 98% 2,2-二甲氧基丙烷 | 77-76-9 | 101363 危化品 |
产品名称 | 货号 |
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Short screw thread vials, 2ml, 9mm, 11.6×32mm, with marking spot, amber, wide opening 短螺纹样品瓶 | 902590 |
Short screw thread vial caps and septa, 9 mm blue pp cap, centre hole 6 mm, pre-slit blue PTFE/white silicone septum 短螺纹样品瓶组合盖垫 | 993144 |
Syringe filter, PTFE membrane (hydrophillic), non-sterile, 13mm, 0.45µm, 200 pcs/pack 针头式过滤器 | 2123704 |
Single-channel mechanical pipettor, Volume range: 50 - 200 μL, Increment: 1.0 μL 单道手动可调移液器 | 997681 |
Pipette tips, 200 μL, yellow, low Retention, 1000 tips/pack 移液器吸头 | 1438546 |