In the case of silicon/APTES, 50 mm diameter mechanical-grade silicon wafers were air plasma cleaned for 1 minute, followed by immersion in a 1:1 v:v solution of HCl:methanol for 30 minutes. The wafers were then rinsed with deionized water and placed into an 80 °C vacuum oven at 25 mmHg overnight.
Seal wash solution - 10% acetonitrile/90% HPLC water is prepared by adding 400 mL of acetonitrile to 3600 mL HPLC-grade water. 7.5.4 Needle wash solution - methanol is used as received. 7.5.5 Purge solvent - HPLC-grade water is used as received, or aqueous mobile phase may be used. 8.0 Standards 8.1 Sources of standards The standards used and suggested suppliers are listed in Table 9.
9-425 Screw top vials provide 40% larger opening than standard narrow opening vials. ˜ 32 x 12 mm, 2ml, Screw neck. ˜ Compatible with all autosamplers due to technical geometry tested on instruments from the following brands: Aijiren, HTA, Shimadzu
Thermo Scientific™ 10mm Non-Assembled Screw Thread Autosampler Amber Glass Vial Kits, with ID, lt. blue cap, red PTFE/white silicone/red PTFE septum, 2mL. Save time and reduce the risk of contamination using this convenience kit. Each kit includes 100 amber vials and 100 screw thread caps with pre-assembled septa.
- Formic acid (Sigma-Aldrich, St. Louis, MO, USA) All the reagents are in analytical grade, and all the solvents are in HPLC grade. Standards used for calibration - Caffeine (Sigma-Aldrich, St. Louis, MO, USA) 2. 2. 2. Experimental supplies - Adjust Pipette
HPLC vials (12 mm outer diameter x 32 mm height, 9 mm opening, 2 mL) Vial caps with pre-slit septa (9 mm open top, 6 mm hole, pre-slit septum) Syringe filter (unless your sample has already been purified by chromatography or distillation) 0.2–1.0 mg of
2mL, Amber Glass, 12*32mm, Flat Base, 9-425 Screw Thread Vial with White Write-on Patch and Graduation Lines. 100pcs/pk. Hplc glass 2ml wholesale chromatography vial Snap Vials in 11mm size provide a secure seal that minimize evaporation, even with volatile samples.
• Potassium Hydroxide: The vial contains potassium hydroxide (KOH) pellets. Place the vial on ice, add 4 ml cold HPLC-grade water, and vortex to yield a 10 M solution. [CAUTION: Heat is generated when potassium hydroxide pellets are dissolved in water. The
Gaborone, Botswana. The purity of the standards was 99.9% Vetranal® a registered trademark of Sigma-Aldrich Biotechnology LP and Sigma Aldrich Company. HPLC grade methanol, ethyl acetate and THF were purchased from Merck, (Modderfontein, South
Description: These inserts are used with 2 ml, 11 mm crimp top and 2 ml, 9 mm short cap, screw thread vials. ,REST24518EA,REST24513EA,REST24520EA,REST21782EA,REST24516EA,REST21777EA,REST21779EA. This product is no longer available. Alternatives may be available by searching with the VWR Catalog
Vials for HPLC (21) Vials for Mass Spectrometry (4) Available for Sale. USA. Globally. Search term: "wide opening vial". Compare Products: Select up to 4 products. *Please select more than one item to compare. 23 matches found for wide opening vial.
Sigma hplc vial caps in amber for Waters HPLC supplier Wholesales clear glass vials with caps price for HPLC sampling Certified 9mm Wide Opening Screw Vial, 2mL Clear Yes Black Bonded Red PTFE/ White Silicone 82030-970 100 Amber Yes 100 Vials ...
Nifedipine Gemini C18 Mobile phase 235 60% Methanol, 40% hPLC 1.0 50 grade water Phenobarbital Gemini C18 Mobile phase 240 70% hPLC grade water, 2.0 100 30% Methanol with 2.7 g sodium acetate trihydrate per liter, ph 5.6
HPLC & UHPLC LC-MS LPLC, TLC & Paper Chromatography Mobile Laboratory Photometry Spectroscopy Sample Prep & Purification Titration & Karl Fischer CHEMISTRY » Acids & Bases Catalysis & Inorganics Chemical Synthesis Chemistry Libraries Salts
Autosampler Vial, Chromatography Lab Vial, HPLC LC GC 1.5 ml Wide Opening Short Screw-Thread Sample Vial with Write-on Spot, Amber, 12x32mm, 8-425 Top Type, 100 pcs/pk by Aijiren 1.0 out of 5 stars 1 $13.99 $ 13 . 99 ($1.40/10 Items)