Cookie preferences
This website uses cookies, which are necessary for the technical operation of the website and are always set. Other cookies, which increase the comfort when using this website, are used for direct advertising or to facilitate interaction with other websites and social networks, are only set with your consent.
Configuration
Technically required
These cookies are necessary for the basic functions of the shop.
"Allow all cookies" cookie
"Decline all cookies" cookie
CSRF token
Cookie preferences
Currency change
Customer recognition
Customer-specific caching
Individual prices
Region preferences
Selected shop
Session
Comfort functions
These cookies are used to make the shopping experience even more appealing, for example for the recognition of the visitor.
Note
EC HPLC guard column (analytical), NUCLEODUR C18 PAH, 1.8 µm, 4x2 mm
$189.00 * $0.00 * (0% Saved)
*taxes and shipping not included
Delivery time approx. 5 working days
Item number: 761970.20 024020274035
Package unit 3 Piece(s) Do you have any questions?
Please contact us. For protection of your main HPLC column from contamination, it is recommended to use guard... more
For protection of your main HPLC column from contamination, it is recommended to use guard columns. These short columns are placed into a guard column holder. The guard column holder in combination with a guard column inside is installed between the injector and the HPLC column. This installation prevents chemical impurities to reach the main column. Because a contamination could form an irreversible bond with the column packing material (stationary phase) and this can result in shorter column life. If you want to prolong the lifetime of your main column, then these short columns can help you.
Method | HPLC/UHPLC, analytical |
Brand | NUCLEODUR |
Base material | NUCLEODUR - high purity silica |
Phase | NUCLEODUR C18 PAH |
USP listing | L118 |
Surface chemistry | Special octadecyl (C18, ODS) modification |
Mode | Reversed phase (RP) |
Type | EC HPLC guard column (analytical) |
Hardware | Stainless steel |
Column length | 4 mm |
Column inner diameter | 2 mm |
Particle type | Fully porous particles (FPP) |
Particle shape | Spherical |
Particle size | 1.8 µm |
Eluent in HPLC column | Acetonitrile – water (70/30, v/v) |
Recommended application(s) | Guard column, ideal protection for your main column, HPLC |
Endcapped | Yes |
Carbon content | Not available or proprietary |
pH stability | 2.0–8.0 |
Pore size | 110 Å |
Specific surface according to BET | 340 m²/g |
Temperature stability (max) | 60 °C |
Pressure stability (max) | 900 bar / 13050 psi |
Storage temperature | 15–25 °C / 59–77 °F |
Scope of delivery | 3x analytical HPLC guard columns |
Gross weight (incl. packaging) | 19.23 g / 0.04 lbs |
Packaging dimensions | 75 x 20 x 75 mm / 2.95 x 0.79 x 2.95 Inch |
Hazardous material | No |
Column Protection System, guard column holder for EC 4x2 + 4x3 mm guard columns
Content 1 Set(s)
REF 718966
$