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I really appreciate your service. It's invaluable. I know that nothing is free. However, you do make it affordable--and that is much appreciated. :) Thanks.
2014-09-19
Although I originally had an issue with getting my document to print, PDFfiller customer service representatives helped me to correct the issue and get access to the information on my document!
2015-04-20
First time, so experiencing a few problems learning your system. Need to spend time learning how to make it work best for me. Will just have to figure it out for myself.
2017-10-10
Ease of filling the forms. There is one change if you can make will be great... in date of birth column, once you click on it, you have to put the MM/DD/YYYY. If you can allow to override that and just put the year, that will be of help. In my case where my father was born in 1920 and his date of MM/DD is not known, I'm forced to fill it with incorrect information.
2018-09-23
********** was the easiest & fastest customer service to resolve a billing issue. If I need to use a document signing company in the future it will most definitely be **********! Thank you ********** Team you truly are amazing! This world needs more kindness in it, thank you for everything!
2022-04-12
It's worked perfectly for filling out PDFs with no built-in fields, which is all I neeed it for - but it looks like a really great and easy-to-use tool from what I've seen
2021-04-01
Its a Fastest and amazing support
Its a Fastest and amazing support, they have resolved my issue in just 2mins, I never seen such fastest crew anywhere, Hope you maintain the same and I wish you guys a wonderful future coming ahead, Amazed with service
2020-12-14
What do you like best?
It is very easy to use & the PDF stay in the system in case you want to go back to it.
What do you dislike?
I have no dislikes. It saves me so much time
What problems are you solving with the product? What benefits have you realized?
I can very easily upload any PDF & undate it or make any change i need to make or just add some information to it.
2020-08-06
Good for regular use
It is ok for people who had to fill and significantly higher number of documents regularly. But whoever has one two documents for a month, quit expensive.
2020-06-13
Choose Columns Resolution Feature
The Choose Columns Resolution feature empowers you to customize your data viewing experience. You can select the specific columns you want to see, enhancing clarity and focus in your work. By tailoring your data layout, you can streamline your workflow and improve your productivity.
Key Features
Select specific columns to display
Easily customize your data layout
Improve visibility and focus
Enhance the speed of data analysis
Simplify reporting and presentations
Potential Use Cases and Benefits
Analyzing large datasets efficiently
Generating reports for stakeholders with relevant information
Preparing presentations with a clear focus on essential data
Facilitating team collaboration by sharing customized views
Reducing distractions by hiding unnecessary data
This feature solves your data management challenges by allowing you to hone in on what matters. Instead of sifting through irrelevant columns, you can focus on the data that drives your decisions. Ultimately, the Choose Columns Resolution feature helps you work smarter, making your tasks simpler and more effective.
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What is film thickness in GC column?
In chromatography, film thickness usually refers to the thickness of the layer of stationary phase covering the surface of the support in a packed column or on the wall of a capillary column.
What is a GC column?
Capillary columns are gas chromatography (GC) columns that have the stationary phase coating their inner surfaces rather than being packed into the cavity. Capillary GC columns are used to analyze samples for the individual chemical compounds that they contain.
How does a GC column work?
The sample being measured is injected into the carrier gas using a syringe and instantly vaporizes (turns into gas form). The gases that make up the sample separate out as they move along the column (orange), which contains the stationary phase (typically, it's a thin coating on the inside wall of the column).
What is a GC column made of?
Materials. Liquid chromatography: Traditional chromatography columns were made of glass. Modern columns are mostly made of borosilicate glass, acrylic glass or stainless steel. To prevent the stationary phase from leaking out of the column interior a polymer, stainless steel or ceramic net is usually applied.
What is the difference between packed and capillary columns?
The main difference between packed column and capillary column is that, in a packed column, the stationary phase is packed into the cavity of the column whereas, in a capillary column, the stationary phase coats the inner surface of the cavity of the column.
What types of columns are used in GC?
There are two general types of column, packed and capillary (also known as open tubular). Packed columns contain a finely divided, inert, solid support material (commonly based on diatomaceous earth) coated with liquid stationary phase.
Which column is used in gas chromatography?
There are two general types of column, packed and capillary (also known as open tubular). Packed columns contain a finely divided, inert, solid support material (commonly based on diatomaceous earth) coated with liquid stationary phase.
How many types of GC detectors are there?
A chromatography detector is a device used in gas chromatography (GC) or liquid chromatography (LC) to detect components of the mixture being eluted off the chromatography column. There are two general types of detectors: destructive and non-destructive.
Why do smaller particles give better resolution?
Mass transfer improves dramatically as the particle size is decreased due to its relationship to the square of the particle size [dp2]. For smaller particles, it takes less time for an analyte molecule to travel into the pores, interact with the chromatographic surface, and be swept back into the mobile phase.
How does particle size affect chromatography?
Particle size particularly affects the efficiency term of the fundamental/Parnell resolution equation (Equation 2). Efficiency is inversely proportional to particle size (Equation 3); hence, a decrease in particle size will result in an increase in efficiency.
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