Web cookies (also called HTTP cookies, browser cookies, or simply cookies) are small pieces of data that websites store on your device (computer, phone, etc.) through your web browser. They are used to remember information about you and your interactions with the site.
Purpose of Cookies:
Session Management:
Keeping you logged in
Remembering items in a shopping cart
Saving language or theme preferences
Personalization:
Tailoring content or ads based on your previous activity
Tracking & Analytics:
Monitoring browsing behavior for analytics or marketing purposes
Types of Cookies:
Session Cookies:
Temporary; deleted when you close your browser
Used for things like keeping you logged in during a single session
Persistent Cookies:
Stored on your device until they expire or are manually deleted
Used for remembering login credentials, settings, etc.
First-Party Cookies:
Set by the website you're visiting directly
Third-Party Cookies:
Set by other domains (usually advertisers) embedded in the website
Commonly used for tracking across multiple sites
Authentication cookies are a special type of web cookie used to identify and verify a user after they log in to a website or web application.
What They Do:
Once you log in to a site, the server creates an authentication cookie and sends it to your browser. This cookie:
Proves to the website that you're logged in
Prevents you from having to log in again on every page you visit
Can persist across sessions if you select "Remember me"
What's Inside an Authentication Cookie?
Typically, it contains:
A unique session ID (not your actual password)
Optional metadata (e.g., expiration time, security flags)
Analytics cookies are cookies used to collect data about how visitors interact with a website. Their primary purpose is to help website owners understand and improve user experience by analyzing things like:
How users navigate the site
Which pages are most/least visited
How long users stay on each page
What device, browser, or location the user is from
What They Track:
Some examples of data analytics cookies may collect:
Page views and time spent on pages
Click paths (how users move from page to page)
Bounce rate (users who leave without interacting)
User demographics (location, language, device)
Referring websites (how users arrived at the site)
Here’s how you can disable cookies in common browsers:
1. Google Chrome
Open Chrome and click the three vertical dots in the top-right corner.
Go to Settings > Privacy and security > Cookies and other site data.
Choose your preferred option:
Block all cookies (not recommended, can break most websites).
Block third-party cookies (can block ads and tracking cookies).
2. Mozilla Firefox
Open Firefox and click the three horizontal lines in the top-right corner.
Go to Settings > Privacy & Security.
Under the Enhanced Tracking Protection section, choose Strict to block most cookies or Custom to manually choose which cookies to block.
3. Safari
Open Safari and click Safari in the top-left corner of the screen.
Go to Preferences > Privacy.
Check Block all cookies to stop all cookies, or select options to block third-party cookies.
4. Microsoft Edge
Open Edge and click the three horizontal dots in the top-right corner.
Go to Settings > Privacy, search, and services > Cookies and site permissions.
Select your cookie settings from there, including blocking all cookies or blocking third-party cookies.
5. On Mobile (iOS/Android)
For Safari on iOS: Go to Settings > Safari > Privacy & Security > Block All Cookies.
For Chrome on Android: Open the app, tap the three dots, go to Settings > Privacy and security > Cookies.
Be Aware:
Disabling cookies can make your online experience more difficult. Some websites may not load properly, or you may be logged out frequently. Also, certain features may not work as expected.
Provides unprecedented depth of proteome coverage and sensitivity via Parallel Accumulation with Serial Fragmentation (PASEF) technology and Trapped Ion Mobility Spectrometry (TIMS)-mediated gas phase separations of ions for increased selectivity prior to mass analysis
Features maximum MS and MS/MS scan rates of ~150 Hz
Capable of multiple mass spectral acquisition options that incorporate PASEF technology, including data-dependent acquisition (DDA-PASEF), data-independent acquisition (DIA-PASEF), and parallel-reaction monitoring (PRM-PASEF) modes
Directly coupled to a Thermo Scientific Dionex Ultimate 3000 RSLCnano UPLC for high resolution, reversed-phase liquid peptide separations at nanoflow rates for maximum sensitivity
Thermo Scientific Orbitrap Eclipse Tribrid Mass Spectrometer
Provides multiple mass analysis and detection modes for MS and MS/MS using an Orbitrap or dual-pressure linear ion trap
Features multiple types of gas-phase fragmentation including collision-induced dissociation (CID), higher energy C-trap dissociation (HCD), electron transfer dissociation (ETD) plus hybrid versions of these techniques: EThcD and ETciD
Equipped to perform Real-Time Search (RTS) and Synchronous Precursor Selection (SPS) MS3-based acquisition methods for multiplexed proteomics analyses that incorporate Thermo Scientific Tandem Mass Tags (TMT) reagents for peptide quantitation
Capable of multiple mass spectral acquisition options including data-dependent acquisition (DDA), data-independent acquisition (DIA), and parallel-reaction monitoring (PRM) modes
Directly coupled to a Thermo Scientific Dionex Ultimate 3000 RSLCnano UPLC for high resolution reversed-phase liquid peptide/protein separations at variable flow regimes, including nanoflow rates for maximum sensitivity
Thermo Scientific Q Exactive HF Mass Spectrometer
Provides high resolution, accurate mass determinations for MS and MS/MS analysis of proteins and peptides in complex mixtures using High-Field (HF) Orbitrap technology
Capable of multiple mass spectral acquisition options including data-dependent acquisition (DDA), data-independent acquisition (DIA), and parallel-reaction monitoring (PRM) modes
Directly coupled to a Thermo Scientific Vanquish Neo UPLC for high resolution reversed-phase liquid peptide/protein separations at variable flow regimes, including nanoflow rates for maximum sensitivity
Available software for proteomics analysis: MaxQuant (Ref), Spectronaut v17 (Biognosys)NEW in 2023!, Proteome Discoverer v2.5 with XlinkX node (Thermo Scientific), Byonic (Protein Metrics, Inc.), Scaffold v5.0 (Proteome Software, Inc.)
Metabolomics
Bruker timsTOF HT Mass SpectrometerNEW in 2023!
Provides unprecedented depth of metabolome coverage and sensitivity via Parallel Accumulation with Serial Fragmentation (PASEF) technology and Trapped Ion Mobility Spectrometry (TIMS)-mediated gas phase separations of ions for increased selectivity prior to mass analysis
Features maximum MS and MS/MS scan rates of ~150 Hz
Capable of multiple mass spectral acquisition options that incorporate PASEF technology, including data-dependent acquisition (DDA-PASEF), data-independent acquisition (DIA-PASEF), and parallel-reaction monitoring (PRM-PASEF) modes
Directly coupled to a Thermo Scientific Vanquish Flex UPLC for high resolution, multi-mode liquid metabolite separations at micro-flow rates
Waters Synapt G2-Si q-TOF Mass Spectrometer
Provides high resolution, accurate mass measurements for MS and MS/MS analysis of small molecules in complex mixtures using q-TOF technology
Capable of multiple mass spectral acquisition options including DDA and DIA modes (MSe)
Ion mobility technology provides another dimension of separation based on collisional-cross section (analyte size and shape) when mass and retention time aren’t sufficient to separate chemically ambiguous analytes and/or isomers
Directly coupled to a Waters Acquity UPLC for high resolution liquid-phase separations at micro-flow rates (μL/min)
Waters Xevo G2-XS q-TOF Mass Spectrometer – with SONAR
Provides high resolution, accurate mass measurements for MS and MS/MS analysis of small molecules in complex mixtures using q-TOF technologyCapable of multiple mass spectral acquisition options including DDA and DIA modes (MSe and SONAR)
Directly coupled to a Waters H-Class UPLC with Quaternary Solvent Manager for complex liquid-phase separations at micro-flow rates (μL/min) and binary- to quaternary-style gradient modes
Available software for large-scale, untargeted metabolomics analysis: Metaboscape (Bruker)NEW in 2023!, Progenesis QI (Nonlinear Dynamics)