User guide
[ CARE AND USE MANUAL ]
CONTENTS 
I.  INTRODUCTION
II. GETTING STARTED 
  a. Safety Considerations 
  b. Column Connectors and Installation 
  c. eCord Installation 
  d. Column Equilibration 
  e. Initial Column Efficiency Determination
III. COLUMN USE
  a. Sample Preparation 
  b. Solvents 
  c. Additives 
  d. Pressure 
  e. Band Spreading Minimization 
IV. TROUBLESHOOTING 
V.  COLUMN CLEANING, ADDITIVES,  
  AND STORAGE  
  a. Cleaning
  b. Effects of Additives 
  c. Storage
VI. INTRODUCING ECORD INTELLIGENT  
  CHIP TECHNOLOGY
  a. Introduction 
  b. Installation 
  c. Manufacturing Information 
  d. Column Use Information
VII. ACQUITY UPC
2
 COLUMN FAMILY
ACQUITY UPC
2
 Trefoil Columns
I. INTRODUCTION
Thank you for choosing an ACQUITY UPC
2
®
 Trefoil™ Column. 
ACQUITY UPC
2
 Trefoil Columns are specifically designed to use 
the complete range of capabilities of the ACQUITY UPC
2
 System 
to achieve fast, robust chiral separations. ACQUITY UPC
2
 Trefoil 
Columns are uniquely designed for the ACQUITY UPC
2
 System 
to enable both selectivity and speed in chiral separations and to 
reduce method development time. ACQUITY UPC
2
 Trefoil Columns 
consist of modified polysaccharide coated stationary phases for 
broad-spectrum chiral selectivity. The higher order structure of  
the polysaccharides have specific spatial orientations that impart 
chiral selectivity through well-chosen modifications or selectors. 
ACQUITY UPC
2
 Trefoil AMY1, CEL1, and CEL2 column  
chemistries are complementary to each other and independently 
offer different retention characteristics for separating chiral 
compounds. Selectivity can be further enhanced by using 
co-solvents and additive blends that most favorably modulate 
chiral recognition. These columns are designed to separate 
enantiomers, stereoisomers, metabolites, degradants, and 
impurities with greater resolution and speed.







