Liquid Chromatography

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11923 topics

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Welcome! by tom jupille » Thu Mar 11, 2021 6:23 pm	0	124289	Last post by tom jupille Thu Mar 11, 2021 6:23 pm

Topics	Replies	Views	Last post
Agilent 1200 system pressure over 400 bars by maldiniyan » Thu Apr 16, 2015 8:51 pm	3	4071	Last post by uzman Fri Apr 17, 2015 6:45 pm
SFC Solutions Articles by CF - David Hills » Thu Apr 16, 2015 1:39 pm	0	7236	Last post by CF - David Hills Thu Apr 16, 2015 1:39 pm
On-Demand Webinar! Open Access Approach to Purification SFC by CF - David Hills » Thu Apr 16, 2015 1:11 pm	0	6711	Last post by CF - David Hills Thu Apr 16, 2015 1:11 pm
Agilent 1100/1200 HPLCs have bad design & construction by Alfred88 » Sat Apr 11, 2015 9:24 pm	18	14977	Last post by lmh Thu Apr 16, 2015 9:46 am
HPLC buffer tubing by Schaafc » Wed Apr 15, 2015 9:37 pm	1	2971	Last post by Gerhard Kratz Thu Apr 16, 2015 6:11 am
Common Reagents for Indirect UV Detection by Vlad Orlovsky » Wed Apr 15, 2015 6:19 pm	3	3520	Last post by M Farooq Thu Apr 16, 2015 4:07 am
Effectiveness of Acetic Acid for Ion Pairing by Jimi » Wed Apr 15, 2015 4:53 pm	1	3750	Last post by Vlad Orlovsky Wed Apr 15, 2015 11:07 pm
Want to trade a 1260 HPLC System for our 1290 UPLC? by KM-USA » Wed Apr 01, 2015 10:47 pm	4	11667	Last post by KM-USA Wed Apr 15, 2015 5:24 pm
PE200 lamp hours by gibbo » Tue Apr 14, 2015 6:45 pm	3	3944	Last post by brett Wed Apr 15, 2015 4:50 pm
agilent 1260 or ultimate 3000 by yara » Tue Mar 10, 2015 5:25 pm	4	6104	Last post by andy_s Wed Apr 15, 2015 2:33 pm
thermo accela 600 solenoid error by BurntChem » Tue Mar 24, 2015 8:06 pm	4	4426	Last post by BurntChem Tue Apr 14, 2015 5:53 pm
Agilent 1100 series HPLCs are discontinued, plus Chemstore by Alfred88 » Sat Apr 11, 2015 8:20 pm	2	5853	Last post by Consumer Products Guy Mon Apr 13, 2015 10:59 pm
No base line separation in Most validated methods.... why ? by eight2015 » Fri Apr 10, 2015 12:28 pm	7	4230	Last post by James_Ball Wed Apr 22, 2015 9:50 pm
Frequency of Instrument Calibration by ajrapport » Wed Apr 08, 2015 6:03 pm	5	3758	Last post by Alfred88 Sat Apr 11, 2015 8:06 pm
Empower Custom Fields Help by smpatty » Fri Apr 10, 2015 2:23 pm	3	4804	Last post by Mritari Mon Apr 13, 2015 5:50 pm
HPLC parameters: Time constant and Sampling Frequency by M Farooq » Fri Apr 10, 2015 2:25 pm	0	4055	Last post by M Farooq Fri Apr 10, 2015 2:25 pm
Detector out resistance effect on peak width. by Johte » Thu Apr 09, 2015 12:21 pm	1	2626	Last post by kubowicz.tomasz Thu Apr 09, 2015 12:33 pm
Empower Field Export - missing Peak Results by djthomaskatana » Wed Apr 08, 2015 2:09 pm	0	3094	Last post by djthomaskatana Wed Apr 08, 2015 2:09 pm
HPLC chromotogram errors by feride » Wed Apr 08, 2015 11:44 am	2	2781	Last post by kubowicz.tomasz Wed Apr 08, 2015 12:30 pm
Waters 501 pump solvent compatibility? by onawire » Tue Apr 07, 2015 11:07 pm	1	2509	Last post by Gerhard Kratz Wed Apr 08, 2015 11:12 am
methylisothiazolinone by sahburn » Tue Mar 31, 2015 5:15 pm	5	4525	Last post by sahburn Tue Apr 07, 2015 3:07 pm
HPLC columns: 2.1 mm vs. 4.6 mm by parkc23 » Thu Apr 02, 2015 9:01 am	7	8403	Last post by lmh Tue Apr 07, 2015 9:19 am
what is purity expectation for primary reference standard by jiangds06 » Wed Apr 01, 2015 2:54 pm	3	3382	Last post by Fernando Mon Apr 06, 2015 2:48 pm
Empower LC Calibration curve by shinn » Fri Apr 03, 2015 8:16 pm	1	4099	Last post by mattmullaney Mon Apr 06, 2015 1:27 am
Same Vial, Different Area Counts by Kidkudi » Thu Jan 15, 2015 1:47 pm	6	4932	Last post by dblux_ Fri Apr 03, 2015 10:37 am
want to buy a new prep HPLC by nath_ziegler » Wed Apr 01, 2015 9:37 am	2	2914	Last post by Chris0000 Fri Apr 03, 2015 3:46 am
Whers the thermal fuse?? by johncarrigan » Wed Mar 25, 2015 6:00 pm	1	2478	Last post by Markus Laeubli, Metrohm Wed Apr 01, 2015 9:31 am
UPLC Kaempferol Bracketing Standard Fail by whelwig » Thu Mar 26, 2015 8:44 pm	5	3342	Last post by mattmullaney Tue Mar 31, 2015 9:22 pm
Fluorescence response problem by Malarac » Thu Mar 26, 2015 7:29 pm	6	3717	Last post by Malarac Tue Mar 31, 2015 8:54 pm
Leak using phosphoric acid/acetonitrile mobile phase. by skunked_once » Wed Mar 25, 2015 6:40 pm	7	7450	Last post by skunked_once Tue Mar 31, 2015 3:33 pm
reducing ammonia on a Waters UPLC by jct476 » Mon Mar 30, 2015 11:42 am	10	4631	Last post by Klaus I. Tue Mar 31, 2015 3:06 pm
column equilibration? by shadow » Sat Mar 28, 2015 2:40 am	4	3742	Last post by Klaus I. Tue Mar 31, 2015 2:50 pm
HPLC method for Monophosphoryl lipid A (MPL) by JI2002 » Tue Mar 31, 2015 12:37 pm	0	3436	Last post by JI2002 Tue Mar 31, 2015 12:37 pm
decanesulfonic by gerapas » Sun Mar 29, 2015 7:07 pm	2	2950	Last post by Vlad Orlovsky Mon Mar 30, 2015 7:16 pm
Waters Atlantis T3 column by jiangds06 » Mon Mar 30, 2015 1:59 pm	1	2632	Last post by tom jupille Mon Mar 30, 2015 5:01 pm
Linearity Curve starting from zero by jayroseville58 » Mon Mar 30, 2015 5:01 am	2	2986	Last post by DR Mon Mar 30, 2015 1:45 pm
all of a sudden, no elution by seraphin » Sat Mar 28, 2015 3:35 am	2	3326	Last post by danko Sun Mar 29, 2015 12:50 am
karl fischer titer value by deerlu » Wed Mar 25, 2015 11:53 pm	3	10021	Last post by deerlu Sun Mar 29, 2015 6:52 am
Dionex ICS-90 Issues by redrider8606 » Wed Mar 25, 2015 10:50 pm	4	10162	Last post by annapantelic Fri Nov 23, 2018 11:33 am
HTC PAL: continuous beep after changing bungee cords by Arne » Wed Mar 25, 2015 9:21 pm	0	3077	Last post by Arne Wed Mar 25, 2015 9:21 pm
CTC PAL cooling stack 6 DW only cools to about 11C by Arne » Mon Mar 16, 2015 3:51 pm	2	3471	Last post by Arne Wed Mar 25, 2015 9:08 pm
Agilent 1290 Pump leaks by hydy425 » Thu Jul 24, 2014 10:27 pm	13	10521	Last post by skunked_once Wed Mar 25, 2015 6:30 pm
Question about UV-cutoff with respect to an NH4Fm gradient by Mike H. » Mon Mar 23, 2015 3:50 pm	3	6385	Last post by Mike H. Tue Mar 24, 2015 6:18 pm
Testing with 100% THF by ndtrung0807 » Fri Mar 13, 2015 2:41 pm	12	6413	Last post by Klaus I. Tue Mar 24, 2015 5:20 pm
Shimadzu UPLC pressure problem by Lab_tech » Thu Mar 19, 2015 9:54 am	9	5348	Last post by Klaus I. Tue Mar 24, 2015 5:08 pm
Accuracy (Recovery) Issue – sample diluent with citrate by Rob Burgess » Thu Mar 19, 2015 4:53 pm	3	3207	Last post by lmh Tue Mar 24, 2015 12:59 pm
Preparation of calibration curves by bluelotus » Mon Mar 23, 2015 4:44 pm	6	3911	Last post by Peter Apps Tue Mar 24, 2015 10:58 am
unknown peak with specify absoption at UV 258 nm by debby hsu » Tue Mar 24, 2015 2:26 am	0	3359	Last post by debby hsu Tue Mar 24, 2015 2:26 am
Dwell volume Agilent 1100 by bunnahabhain » Fri Mar 20, 2015 1:57 pm	7	6733	Last post by Klaus I. Mon Mar 23, 2015 5:54 pm
UHPLC-MS vs. HPLC-MS by parkc23 » Sun Mar 22, 2015 3:55 pm	3	4341	Last post by lmh Mon Mar 23, 2015 12:23 pm

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