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Karl A Hanold

Explore the profile of Karl A Hanold including associated specialties, affiliations and a list of published articles. Areas
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Articles 6
Citations 55
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Recent Articles
1.
Burke S, Auvil Z, Hanold K, Continetti R
Proc Natl Acad Sci U S A . 2023 Dec; 120(50):e2313447120. PMID: 38048472
Astrobiology studies are a top priority in answering one of the most fundamental questions in planetary science: Is there life beyond Earth? Saturn's icy moon Enceladus is a prime target...
2.
Cai S, Syage J, Hanold K, Balogh M
Anal Chem . 2009 Feb; 81(6):2123-8. PMID: 19227980
In this work, we demonstrate the utility of ultra performance liquid chromatography-atmospheric pressure photoionization-tandem mass spectrometry (UPLC-APPI-MS/MS) for high-sensitivity and high-throughput analysis of United States Environmental Protection Agency (U.S. EPA)...
3.
Short L, Hanold K, Cai S, Syage J
Rapid Commun Mass Spectrom . 2007 Apr; 21(10):1561-6. PMID: 17428016
Analysis of several polar and non-polar compounds is performed with a newly developed dual electrospray ionization/atmospheric pressure photoionization (ESI/APPI) or ESPI source. Several variables are considered in the source, such...
4.
Cai S, Hanold K, Syage J
Anal Chem . 2007 Feb; 79(6):2491-8. PMID: 17288463
In this work, we compared APPI and APCI for normal-phase LC/MS chiral analysis of five pharmaceuticals. Performance was compared both by FIA and by on-column analysis using a ChiralPak AD-H...
5.
Syage J, Hanold K, Lynn T, Horner J, Thakur R
J Chromatogr A . 2004 Oct; 1050(2):137-49. PMID: 15508306
In this paper we describe results based on the combination of atmospheric pressure photoionization (APPI) with atmospheric pressure chemical ionization (APCI) and electrospray ionization (ESI). The main purpose of combining...
6.
Hanold K, Fischer S, Cormia P, Miller C, Syage J
Anal Chem . 2004 May; 76(10):2842-51. PMID: 15144196
In this work, we describe the performance of an atmospheric pressure photoionization (APPI) source for sampling liquid flows. The results presented here primarily focus on the mechanism of direct photoionization...