Status:
ReviewerMember since: 2017
Organization: UCSF
Great column
Application Area: We use it for analitical detection of drugs in human plasma samples using UPLC system to perform PK/
"We always achieve high quality and reproducible results."
Status:
ReviewerMember since: 2017
Organization: Dow Chemical
Product as described.
Application Area:protect Column from particulates entering from contaminated samples
"I purchased this column protector for an R& D purpose. This column has done what it was intended to do."
Status:
ReviewerMember since: 2017
Organization: West-Ward Pharmaceuticals
Works with appropriate column very well.
Application Area:Drug Product Analysis
"Used for drug product research. Is suitable for research in our applications as we have ordered vanguard columns in the past as well."
Status:
ReviewerMember since: 2017
Organization: The JM Smucker Co
We are happy with results and faster analysis times!
Application Area:Analyze caffeine in beverages
"We recently switched our current method over from HPLC to UPLC. We are happy with our results and faster run times. Our run times were 8 -10 minutes and now we see results in 4-5 minutes."
Status:
ReviewerMember since: 2017
Organization: Sensient Natural Ingredients
Fantastic when it works, not so hot for on-site care needs.
Application Area:Small molecule separations, high throughput sample analysis
"Waters pre-columns work well at extending the life of the main column on our system. They're easy to use and change out when necessary. The UPLC system is a rock star when it works which is a majority of the time. Waters after market support is great for pre-arranged maintenance, like a PM visit. 3-stars for after sales care as getting a technician on-site for unexpected maintenance needs can take days and we're only a couple hours away from their San Francisco bay area offices."
Status:
ReviewerMember since: 2017
Organization: Cayman Chemical Company
Great result
Application Area:performing Reverse Phase HPLC
"We purchased this product few months ago and it worked great for us! "
Status:
ReviewerMember since: 2017
Organization: Epa
These little guys are great!
Application Area:Analyze organic micropollutants in environmental matrices
"These columns are great and have a very long lifetime when properly cared for. They are perfect for protecting our separation columns."
Status:
ReviewerMember since: 2017
Organization: Covestro
Great Product and easy to use.
Application Area:Industrial Polymers, additives, catalysis & dyes
"Very easy to install. Extends the column life a lot. We routinely using these guard columns and happy with the product."
Status:
ReviewerMember since: 2017
Organization: Cidara Therapeutics
Extends column lifetime
Application Area:Analysis of drug product and metabolites in biological matrices. also used in peptide/protein analys
"Easy to install, extends column lifetime by catching the crud. Definitely cheaper to replace than a column when clogged. No noticeable change in chromatography"
Status:
ReviewerMember since: 2017
Organization: Regis Technologies
Excellent design and performance.
Application Area:Pharmaceuticals
"No loss of peak performance as compared to no precolumn use. Easy to configure to columns."
Status:
Expert ReviewerMember since: 2016
Organization: Mitchell Cancer Intitute
Great product will always use
Application Area:Spe of samples!
"These columns are easy to use and are a great value."
Status:
ReviewerMember since: 2014
Organization: Korea Testing and Research Institute
"I usually analysis aldehydes by using UPLC, so I frequently install the VanGuard column. The result of peak is very sharp whenever I use new column, and when I analysis just 30 samples the column is out of order. So I have to buy new one to analysis the sample. It is really not practical product for me!!!!!"
Manufacturer's Response"The VanGuard needs to be replaced after 30 injections, so from your review it appears the VanGuard is working as intended. It is a replaceable item to protect the column. If it fouls after 30 injections you may be injecting some nasty samples. If you are replacing the ACQUITY column after 30 injections the VanGuard is not working correctly, if that is the case please contact us so we can trouble shoot further."
Guard columns are typically used in applications where complex, unpredictable and demanding samples are analyzed. VanGuard Pre-Columns are the first guard columns specifically designed for routine use at pressures up to 15,000 psi (1,000 bar). The first VanGuard Pre-Columns for UPLC separations will be available with 1.7 µm ACQUITY UPLC BEH C18 chemistry. Additional VanGuard Pre-Columns will be released as they become available.