Sigma-Aldrich
甲酸, reagent grade, ≥95%
Sigma-Aldrich
甲酸, ACS reagent, ≥96%
Sigma-Aldrich
甲酸, puriss. p.a., ACS reagent, reag. Ph. Eur., ≥98%
Sigma-Aldrich
乙腈, ACS reagent, ≥99.5%
Sigma-Aldrich
甲酸, puriss., meets analytical specifications of DAC, FCC, 98.0-100%
Sigma-Aldrich
甲酸, ACS reagent, ≥88%
Supelco
SPME 纤维组件二乙烯基苯/羧基/聚二甲基硅氧烷 (DVB/CAR/PDMS), matrix active group 50/30µm DVB/CAR/PDMS, needle size 24 ga, StableFlex fiber, for use with autosampler, fiber L 2 cm, pk of 3
Supelco
SPME 纤维组件二乙烯基苯/羧基/聚二甲基硅氧烷 (DVB/CAR/PDMS), matrix active group 50/30µm DVB/CAR/PDMS, StableFlex fiber, manual holder, needle size 24 ga
Supelco
SPME 纤维组件二乙烯基苯/羧基/聚二甲基硅氧烷 (DVB/CAR/PDMS), 50/30µm DVB/CAR/PDMS, StableFlex (1 cm), needle size 23 ga, Autosampler, pk of 3, plain gray hub
Supelco
SPME 纤维组件二乙烯基苯/羧基/聚二甲基硅氧烷 (DVB/CAR/PDMS), matrix active group 50/30µm DVB/CAR/PDMS, needle size 24 ga, StableFlex, for use with autosampler, fiber L 1 cm, pk of 3
Supelco
SPME 纤维组件二乙烯基苯/羧基/聚二甲基硅氧烷 (DVB/CAR/PDMS), 50/30µm DVB/CAR/PDMS, StableFlex (2cm), needle size 23 ga, Autosampler, pk of 3, notched gray hub
Supelco
SPME 纤维组件聚二甲基硅氧烷 (PDMS), df 100 μm(PDMS, for use with autosampler, needle size 23 ga
Sigma-Aldrich
乙腈, biotech. grade, ≥99.93%
Supelco
SPME 纤维组件聚二甲基硅氧烷 (PDMS), df 100 μm(PDMS, needle size 24 ga, for use with manual holder
Supelco
SPME 纤维组件聚二甲基硅氧烷 (PDMS), df 100 μm(PDMS, for use with autosampler, needle size 24 ga
Sigma-Aldrich
乙腈, anhydrous, 99.8%
Supelco
SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), df 75 μm(CAR/PDMS, for use with manual holder, needle size 24 ga
Sigma-Aldrich
甲酸, ≥95%, FCC, FG
Supelco
SPME固相微萃取萃取头,二甲基硅氧烷/二乙烯基苯(PDMS/DVB), df 65 μm(PDMS/DVB, needle size 24 ga, StableFlex, for use with autosampler
Supelco
SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), df 85 μm(CAR/PDMS, needle size 23 ga, StableFlex, for use with autosampler
Supelco
SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), df 85 μm(CAR/PDMS, needle size 24 ga, StableFlex, for use with autosampler
Sigma-Aldrich
乙腈, ReagentPlus®, 99%
Supelco
聚丙烯酸酯 (PA) 固相微萃取萃取头, df 85 μm(PA, for use with autosampler, needle size 23 ga
Sigma-Aldrich
乙腈, electronic grade, 99.999% trace metals basis
Supelco
SPME固相微萃取萃取头,二甲基硅氧烷/二乙烯基苯(PDMS/DVB), df 65 μm(PDMS/DVB, needle size 24 ga, for use with manual holder
Supelco
SPME固相微萃取萃取头,二甲基硅氧烷/二乙烯基苯(PDMS/DVB), df 65 μm(PDMS/DVB, needle size 23 ga, PDMS/DVB StableFlex, for use with autosampler
Sigma-Aldrich
乙腈, suitable for DNA synthesis, ≥99.9% (GC)
Supelco
SPME固相微萃取萃取头 Carboxen/聚二甲基硅氧烷 (CAR/PDMS), df 75 μm(CAR/PDMS, needle size 24 ga, for use with autosampler
Sigma-Aldrich
四氯化硅, 99.998% trace metals basis