Liquid Chromatography

Forum	Topics	Posts	Last post
Ion Chromatography Discussions about IC and related topics Topics: 402	402	1507	Last post Re: Setting retention time wi… by Jofichrom Fri Mar 06, 2026 2:33 pm
Capillary Electrophoresis Discussions about CE, MEKC and related topics Topics: 52	52	110	Last post Re: Sudden Unknown Peak Durin… by Multidimensional Fri Aug 01, 2025 3:47 pm
GPC/GFC/SEC Discussions about gel permeation chromatography / gel filtration chromatography / size exclusion chromatography Topics: 120	120	469	Last post Re: High-temp filtration of c… by DR Tue Jan 06, 2026 5:42 pm

Post a new topic

11917 topics

Announcements	Replies	Views	Last post
Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	85458	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Hypothetical question about possble impurity by Mike H. » Fri Jan 12, 2018 3:18 pm	6	3300	Last post by Mike H. Tue Jan 23, 2018 7:07 pm
Highest CONC of SDS possible in samp's injec'd onto a C8 col by Faith » Fri Jan 19, 2018 4:44 am	6	4320	Last post by Andy Alpert Tue Jan 23, 2018 4:57 pm
Agilent reference wavelength by mardexis » Wed Apr 14, 2010 11:53 pm	10	13181	Last post by Multidimensional Sun Jan 21, 2018 12:12 am
Source of Electropolished Tubing for HPLC Columns by Vlad Orlovsky » Thu Jan 18, 2018 4:29 pm	6	3453	Last post by mattmullaney Fri Jan 19, 2018 2:00 am
No flow on Thermo Dionex Ultimate 3000 by 1510NF » Fri Jan 12, 2018 10:58 pm	10	9365	Last post by mattmullaney Thu Jan 18, 2018 9:29 am
Dionex Pressure calibration by jenncarter » Wed Jan 17, 2018 9:03 pm	0	3460	Last post by jenncarter Wed Jan 17, 2018 9:03 pm
Potential Band Broadening issues by Eggstract » Fri Jan 12, 2018 1:05 pm	17	6212	Last post by mattmullaney Tue Jan 16, 2018 6:42 pm
Glyphosate using EPA 547 by Bigbear » Thu May 19, 2016 2:38 pm	23	9486	Last post by Bigbear Tue Jan 16, 2018 12:55 pm
Buffer concentration vs Retention Time by ether » Fri Nov 04, 2011 10:35 am	6	7717	Last post by HPLC chemist Tue Jan 16, 2018 11:18 am
Why is methanol a preferred solvent for flushing machine? by EmpowersBane » Sat Jan 13, 2018 10:20 am	7	15898	Last post by mattmullaney Sun Jan 14, 2018 12:45 pm
HPLC Validation Reproducibility Sample Prep by mike_s » Tue Jan 09, 2018 9:04 pm	6	4295	Last post by mattmullaney Fri Jan 12, 2018 7:53 pm
How can I calculate de Void Volume of a strong anionic excha by apotolicchio » Fri Jan 12, 2018 3:16 pm	2	2941	Last post by mattmullaney Fri Jan 12, 2018 5:55 pm
Column Volume Calculation by apotolicchio » Thu Jan 11, 2018 5:22 pm	3	25675	Last post by apotolicchio Fri Jan 12, 2018 11:00 am
No-column injection for peak area determination by holmerz » Thu Jan 04, 2018 10:09 am	15	6337	Last post by holmerz Fri Jan 12, 2018 7:51 am
HPLC courses coming up in March by tom jupille » Fri Jan 12, 2018 12:33 am	0	3963	Last post by tom jupille Fri Jan 12, 2018 12:33 am
Totalchrom Perkin Elmer by Sallybeetle » Fri Nov 14, 2014 11:49 pm	6	6651	Last post by Sallybeetle Wed Jan 10, 2018 6:45 pm
Peak Purity by Mike H. » Tue Jan 09, 2018 4:25 pm	4	3866	Last post by mattmullaney Wed Jan 10, 2018 3:27 pm
HP 1050 - Alternative Software by danor285 » Tue Oct 24, 2017 6:14 pm	9	4574	Last post by mckrause Tue Jan 09, 2018 3:09 pm
Injection solvent for reverse phase by kouroshh1 » Mon Jan 08, 2018 10:32 pm	7	6768	Last post by mattmullaney Tue Jan 09, 2018 2:58 pm
irreproducible areas by jcwagner » Tue Dec 19, 2017 2:49 pm	11	3914	Last post by mattmullaney Tue Jan 09, 2018 10:28 am
Green Solvents? by dremart11 » Thu Jan 04, 2018 8:43 pm	1	3014	Last post by tom jupille Mon Jan 08, 2018 7:41 pm
Hydrogen bonding in HPLC by Mike H. » Wed Jan 03, 2018 7:50 pm	13	4654	Last post by mattmullaney Mon Jan 08, 2018 6:48 pm
Carryover problems by Jeff35 » Sat Jan 06, 2018 5:47 pm	6	7099	Last post by mattmullaney Sun Jan 07, 2018 5:37 pm
Problem with Indole-3-carbinol chromotography by kouroshh1 » Mon Dec 18, 2017 9:38 pm	51	11285	Last post by kouroshh1 Sat Jan 06, 2018 10:38 pm
No-column injection for peak area determination by holmerz » Thu Jan 04, 2018 10:08 am	2	2967	Last post by Vlad Orlovsky Sat Jan 06, 2018 9:45 pm
radial temperature gradient in LC by MaxSpecs » Fri Jan 05, 2018 1:57 pm	2	3425	Last post by mattmullaney Fri Jan 05, 2018 11:17 pm
Which is more accurate way to calculate Potency? by Apple_insci » Sun Nov 09, 2008 7:15 am	22	45416	Last post by Jahroll42 Thu Jan 04, 2018 4:38 am
Void Volume Question by Gizmo » Thu Dec 28, 2017 10:07 pm	8	7214	Last post by Rndirk Wed Jan 03, 2018 2:17 pm
Shimadzu Prominence CBM20 Cannot connect to Labsolutions by Mindhunter2018 » Wed Jan 03, 2018 3:32 am	2	4007	Last post by HPLC chemist Wed Jan 03, 2018 1:40 pm
additives for chiral by jcwagner » Wed Dec 27, 2017 10:30 pm	6	4671	Last post by Mike H. Tue Jan 02, 2018 3:54 pm
1090 LC Service Manual by syringe » Sat Feb 28, 2015 5:17 pm	14	6796	Last post by 1090SN Mon Jan 01, 2018 6:24 am
pressure problems making no sense by SergioM420 » Sat Dec 16, 2017 5:03 pm	8	3901	Last post by mattmullaney Fri Dec 29, 2017 2:46 pm
Analysis of organic acids using HPLC-PDA by fruitjuice » Mon Oct 16, 2017 5:07 am	25	8160	Last post by Multidimensional Thu Dec 28, 2017 2:24 pm
Protein separation by reverse phase HPLC by cgodse@gmail.com » Fri Dec 15, 2017 7:17 am	7	5699	Last post by Multidimensional Wed Dec 27, 2017 10:52 pm
HPLC ion exchange chromatogram nasty by LabPro » Mon Dec 04, 2017 3:00 pm	1	3064	Last post by mattmullaney Sun Dec 24, 2017 11:13 pm
ghost peak at LC by id4hplc » Sat Dec 23, 2017 8:13 pm	1	2725	Last post by tom jupille Sun Dec 24, 2017 7:32 pm
Acetaldehyde split by lvan » Tue Nov 28, 2017 4:34 pm	5	3909	Last post by mattmullaney Sun Dec 24, 2017 6:02 pm
< or > LOQ by crimelist » Tue Dec 12, 2017 2:37 pm	16	5865	Last post by jcwagner Fri Dec 22, 2017 10:24 pm
help with HPLC dionex sumit whit detector ultimate 3100 by erick12 » Thu Dec 21, 2017 7:18 pm	1	2724	Last post by mattmullaney Thu Dec 21, 2017 7:58 pm
separation of positional isomers by Mike H. » Wed Dec 13, 2017 8:56 pm	16	12554	Last post by lmh Thu Dec 21, 2017 12:31 pm
flow cell pressure by jcwagner » Tue Dec 12, 2017 9:44 pm	7	5359	Last post by lmh Tue Dec 19, 2017 11:50 am
Possible Co-Eluter Issues - DAD by Gizmo » Fri Dec 15, 2017 11:00 pm	7	3491	Last post by lmh Tue Dec 19, 2017 11:24 am
How often people develop LC method which has flow rate chang by KhareM » Fri Dec 15, 2017 7:54 pm	5	3099	Last post by Jake Mon Dec 18, 2017 8:51 pm
amperometric detection using BASi - LC4C by Torg » Mon Nov 27, 2017 12:39 pm	1	2935	Last post by Markus Laeubli, Metrohm Mon Dec 18, 2017 3:05 pm
CO2 free water for electrochemical detector by thohry » Mon Dec 04, 2017 4:46 am	4	9187	Last post by Markus Laeubli, Metrohm Mon Dec 18, 2017 3:02 pm
NLT Theoritical Plate 2000 ? by metuchem » Sat Dec 16, 2017 8:59 am	5	4108	Last post by mattmullaney Mon Dec 18, 2017 11:42 am
Does kinked tubing cause dipping baselines? by EmpowersBane » Sat Dec 16, 2017 11:46 am	2	3255	Last post by mattmullaney Sat Dec 16, 2017 5:04 pm
PL-ELS 2100 Software by CJFugate » Thu Dec 14, 2017 11:53 pm	0	5471	Last post by CJFugate Thu Dec 14, 2017 11:53 pm
LC VIM selector valve rotor seal rusting?? by moreysalzman » Tue Nov 21, 2017 8:27 pm	3	3901	Last post by Multidimensional Wed Dec 13, 2017 7:04 pm
Hydrxoxyproline interference by simon.leclair2 » Fri Dec 01, 2017 12:35 pm	7	3844	Last post by simon.leclair2 Tue Dec 12, 2017 3:39 pm

Post a new topic

11917 topics

Return to Board Index

Who is online

In total there are 13 users online :: 0 registered, 0 hidden and 13 guests (based on users active over the past 5 minutes)
Most users ever online was 11462 on Mon Dec 08, 2025 9:32 pm

Users browsing this forum: No registered users and 13 guests

Forum permissions

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum

Latest Blog Posts from Separation Science

Separation Science offers free learning from the experts covering methods, applications, webinars, eSeminars, videos, tutorials for users of liquid chromatography, gas chromatography, mass spectrometry, sample preparation and related analytical techniques.

Subscribe to our eNewsletter with daily, weekly or monthly updates: Food & Beverage, Environmental, (Bio)Pharmaceutical, Bioclinical, Liquid Chromatography, Gas Chromatography and Mass Spectrometry.

Gas Chromatography

Mass Spectrometry

Related Sites

Separation Science

Analytical Training Solutions

Registration

Log in

Part of Separation Science