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Tag: carryover


2016-7. How Does It Work? Part III: Autosamplers

July 1, 2016

A reliable autosampler is one key requirement for unattended operatoin of a liquid chromatograph. LCGC 34(7) 472-478 (2016) John W. Dolan

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2012-5. Extra Chromatographic Peaks – A Case Study

May 1, 2012

What do you do when an unexpected peak appears in the chromatogram? LCGC 30(5) 392-400 (2012) John W. Dolan Erratum: (from 30(7), on p 394, the calculation showed that 0.1% x 0.1% = 0.01%, when in fact is should have been 0.1% x 0.1% = 0.0001%

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2006-8. Autosampler Carryover

August 1, 2006

Why is the blank never clean? LCGC 24(8) 754-764 (2006) John W. Dolan

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2005-8. Broad Peaks

August 1, 2005

Where did that ugly peak come from? LCGC 23(8) 738-743 (2005) John W. Dolan

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2005-1. Stay Away from the Cliffs!

January 1, 2005

Does your method have a safety factor? LCGC 23(1) 30-35 (2005) John W. Dolan

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2001-10. Attacking Carryover Problems

October 1, 2001

A systematic approach is the best way to solve carryover problems. LCGC 19(10) 1050-1054 (2001) John W. Dolan

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2001-5. Autosamplers, Part II — Problems and Solutions

May 1, 2001

Autosamplers can be great time-savers, but they have their own set of problems. LCGC 19(5) 478-482 (2001) John W. Dolan

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2001-3. Reproducibility and Carryover — A Case Study

March 1, 2001

But it worked for someone else… LCGC 19(3) 290-296 (2001) Laurie A. Cooley and John W. Dolan

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2001-2. Autosampler Carryover

February 1, 2001

Where did that peak come from? No sample was injected! LCGC 19(2) 164-168 (2001) John W. Dolan

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1999-11. Reader’s Questions: Carryover, Mobile-Phase Temperature, and Column Care

November 1, 1999

Basic column care usually is independent of sample type LCGC 17(11) 1006-1008 (1999) John W. Dolan

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