成人做爰免费视频免费看_成人a级高清视频在线观看,成人a大片在线观看,成人a大片高清在线观看,成人av在线播放,一a一级片,一级黄 中国色 片,一级黄 色蝶 片,一级黄色 片生活片

NUCLEOSIL® C4

Butyl modified silica phases for HPLC

Medium density modification, endcapping · ~ 2 % C · USP L26

Features

Endcapped phases for RP and ion-pairing chromatography
Available pore sizes 120, 300, 500, 1000 and 4000 Å, available particle sizes 5 µm, 7 µm and 10 µm
Separation mechanism based on hydrophobic (van der Waals) interactions, some residual silanol interactions
Retention times are shorter than on C8 and C18 phases
pH stability at 20 °C: 2–8

For applications click here.

EC standard columns for analytical HPLC

Ordering information

Eluent in column acetonitrile – water

Length 250 mm

EC guard columns*

CC guard columns**

NUCLEOSIL® 120-5 C4 · particle size 5 µm, pore size 120 Å, ~ 4 % C

4.6 mm ID

720096.46

721083.30

721889.40

NUCLEOSIL® 300-5 C4 · particle size 5 µm, pore size 300 Å, ~ 2 % C

4 mm ID

720059.40

721916.30

721607.40

4.6 mm ID

720059.46

721916.30

721607.40

Columns/pack

1

3

3

* EC 4/3 guard column cartridges are used for EC columns of 4 and 4.6 mm ID with the Column Protection System guard column holder (REF 718966).
** CC 8/4 guard column cartridges are used for EC columns of 4 and 4.6 mm ID with guard column adapter EC (REF 721359).

Custom-packed EC columns with other dimensions are available on request.

NUCLEOSIL® C4 bulk packingsOrdering information

Phase

Carbon content

Pore size

Particle size

Pack of 10 g

Pack of 100 g

NUCLEOSIL 120-5 C4

~ 4 %

120 Å

5 µm

712290.10

712290.100

NUCLEOSIL 300-5 C4

~ 2 %

300 Å

5 µm

712620.10

712620.100

NUCLEOSIL 300-7 C4

~ 2 %

300 Å

7 µm

712630.10

712630.100

NUCLEOSIL 300-10 C4

~ 2 %

300 Å

10 µm

712640.10

712640.100

NUCLEOSIL 500-7 C4

< 1 %

500 Å

7 µm

712750.10

712750.100

NUCLEOSIL 1000-7 C4

< 1 %

1000 Å

7 µm

712780.10

712780.100

NUCLEOSIL 4000-7 C4

< 1 %

4000 Å

7 µm

712925.10

712925.100