UHPLC COLUMN

Welch also offers Ultisil® UHPLC (1.8μm) columns. With high column efficiency and good lot-to-lot reproducibility, Ultisil® UHPLC can generate high quality data, decreasing the probability of repeated sample analyses while reducing the consumption of solvent at the same time. Ultisil® UHPLC series offer a variety of bonded phases, specified guard columns and pre-columns for the users to design and realize faster and more environmentally friendly chromatography applications with higher resolution.

Feature

• Ultra resolution: same resolution as or better than that of conventional column which has more packing materials.
• Ultra speed: UHPLC offers more information per unit time and higher speed owing to its smaller particles.
• Sensitivity: higher N, narrower peak width (W), higher peak height. The system sensitivity of 1.8μm UHPLC is 70% and 40% higher than that of conventional colμmn of 5μm and 3.5μm packings, respectively.

 Ultisil® UHPLC XB-C18

Structural Formula
pH Range	1.5-10.0
Particle Size	1.8μm
Surface Area(m2/g)	320(120Å)
Carbon Loading(%)	17(120Å)
USP List	L1
Endcapped	Yes

Ultisil® UHPLC AQ-C18

Structural Formula
pH Range	1.5-10.0
Particle Size	1.8μm
Surface Area(m2/g)	320(120Å)
Carbon Loading(%)	12(120Å)
USP List	L1
Endcapped	Yes

Column Packing Features Unique column packing technique Withstand ultra-high pressure of UHPLC instruments	Hardware Features New design Low dead volume New special frit	Packing Materials Features High efficiency 1.8μm particles High column efficiency and excellent strength Variety of bonding chemistries Stable column bed, highest pressure: 15000psi

Analysis of Aflatoxin

Analysis of Telmisartan Tablets

Inline Filter for UHPLC

	P/N	Description
	00808-01221	UltraShield inline Fliter, SS, 0.5μm stainless steel frit, 15000psi
	00808-01222	Direct Connect Precolumn inline Filter, with 0.2μm Replacement Frits×5, 18000psi
	00808-UF020	Replaceable frits (0.2μm)

Ordering Information—1.8μm UHPLC column