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by tom jupille » Sat Nov 13, 2010 11:54 pm
How to embed chromatograms and reports
by tom jupille » Sat Nov 13, 2010 11:53 pm
Where to look first.
by tom jupille » Sat Nov 13, 2010 11:52 pm
High speed centrifuge 50% ACN in H2O solution bad idea?
by chemist23 » Fri Oct 09, 2020 9:12 pm
Is my dilution math correct?
by chemist23 » Wed Oct 07, 2020 4:33 am
Saccharin in water
by hts123 » Sat Oct 03, 2020 8:09 am
the story is this:
by camale0nte » Fri Oct 02, 2020 1:52 pm
Xanthan Gum sample preparation for HPLC analysis
by luke83 » Fri May 13, 2011 7:53 am
What happens to DNA during acetonitril precipitation?
by Friederike » Thu Sep 17, 2020 4:45 pm
Calculate the sample mass equivalent to 2 mg ion Chlorine
by ultima_86 » Tue Sep 15, 2020 10:30 am
Acrylic acid disposal
by Arne » Fri Aug 14, 2020 3:42 pm
sodium sulfate cleaning
by MichaelVW » Wed Jul 01, 2020 5:33 pm
Carbamate degradation in water samples
by ifqal » Mon Jul 06, 2020 5:52 pm
Stability of Benzo(a)pyrene-D12
by James_Ball » Mon Jul 06, 2020 2:32 pm
Derivatization with MSTFA, NH4I and Ethanethiol
by chem0211 » Tue Oct 15, 2019 7:54 am
Alternative SPE solvent?
by Cantacoxinha » Thu Jul 25, 2019 2:08 pm
Enzyme activity by direct monitoring of transamination rxn
by JLeeHads » Thu Aug 29, 2019 2:57 pm
Does lactose monohydrate convert to lactose after drying?
by chemist23 » Thu Sep 19, 2019 1:15 pm
SPE cartridge decomposition?
by KathyPolo » Fri Jun 05, 2020 12:41 am
Sample prep with MSA
by CFire0515 » Thu May 21, 2020 12:54 pm
sodium tetraethyl borate
by Sassolini » Tue Apr 07, 2020 3:37 pm
How to extract Ethanol from gel Hand sanitizers
by chemist23 » Tue May 12, 2020 7:53 pm
Sodiumazide in alkaline hydrolysis
by Förbrylium » Tue Nov 12, 2019 9:21 am
How do I know how much I should dilute my sample in HPLC
by hibu » Sat Apr 25, 2020 8:58 am
Oxidation using Oasis WCX cartridges
by Mattias » Fri Jan 24, 2020 1:06 pm
derivatisation with sodium tetraethyl borate
by emsman » Mon Mar 25, 2013 1:37 pm
SPE Class A requirement? Graduated conical centrifuge tubes
by LALman » Tue Mar 31, 2020 9:22 pm
PAH / DRO by hexane/acetone microwave/ultrasonic extraction
by LALman » Wed Sep 05, 2018 8:41 pm
525.2 Extraction Guidance
by ScientiaPotentiaEst » Fri Feb 21, 2020 2:46 pm
Matrix-matched calibration question
by thohry » Thu Feb 20, 2020 1:32 pm
Auto pipette availability
by Bigbear » Wed Feb 19, 2020 3:10 pm
Pesticides analysis
by johnmario » Sat Feb 08, 2020 2:00 pm
EPA 549.2 Conditioning Solution A
by MadAsAHatter » Tue Feb 04, 2020 5:33 pm
Diazald availibility
by Bigbear » Thu Jan 09, 2020 12:59 pm
about weighing out material
by agao123 » Tue Dec 17, 2019 4:43 am
Explanation of derivitization sequence
by john@sombra » Fri Dec 20, 2019 9:44 pm
Preparation of octenyl succinate
by mkarkov » Fri Dec 20, 2019 12:34 pm
Purge and trap - loss of methylene chloride
by Mathieu_CZRI » Mon Aug 28, 2017 6:01 pm
sample in pH=7.4 buffer with salts
by agao123 » Mon Sep 16, 2019 3:43 pm
peroxide transfer from textiles to water
by ucanmoruk » Wed Nov 13, 2019 11:45 am
Automatic timer 40 amps for hot plates
by bdhedhy19 » Mon Oct 21, 2019 3:04 am
Poor Recoverability From SPE
by handlovic » Thu Oct 10, 2019 1:48 am
Povidone Nitrogen Content - Kjeldhal method
by Geof235 » Fri Oct 18, 2019 4:45 pm
Derivitization Reaction for sample analysis
by Geof235 » Fri Oct 18, 2019 8:49 pm
SPME procedure modification
by Pynball » Mon Sep 30, 2019 10:41 am
Background peaks and trash in extraction
by ScientiaPotentiaEst » Wed Sep 25, 2019 6:25 pm
SPE stationary phase
by Pynball » Thu Sep 12, 2019 9:42 am
SIDA issue
by Krusvar » Mon Sep 02, 2019 12:50 pm
Calibration of balances, weights, and required check range
by LALman » Fri May 04, 2018 8:11 pm
Dilution Factor For Method 9056
by adamwmcanally » Thu Aug 08, 2019 3:10 pm
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