astronomy

Hilkka I. Kenttämaa

Hilkka I. Kenttämaa is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Hilkka I. Kenttämaa rather than just read about it. In short: Hilkka Inkeri Kenttämaa is a researcher in organic and bioorganic mass spectrometry, and the Frank Brown Endowed Distinguished Professor of Chemistry at Purdue University. She is a pioneer in distonic radical cation research and laser-induced acoustic desorption.

Key takeaways

Hilkka I. Kenttämaa belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Hilkka I. Kenttämaa to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Hilkka I. Kenttämaa from memory before moving on to harder problems.

Reference excerpt

Hilkka Inkeri Kenttämaa is a researcher in organic and bioorganic mass spectrometry, and the Frank Brown Endowed Distinguished Professor of Chemistry at Purdue University. She is a pioneer in distonic radical cation research and laser-induced acoustic desorption.

Early life and education Kenttämaa had initially planned to study mathematics, instead of chemistry, despite both her parents being chemists. She studied at Helsinki University, earning a BS in 1977, a MS in 1978, a Phil. Lic.in 1981, and a PhD in Organic Chemistry in 1986. She did post-doctoral research with R. Graham Cooks at Purdue University in 1986.

Career She began her career as a research scientist at Helsinki University, the Academy of Finland, and as a visiting research scientist at Purdue University. She joined the faculty at Purdue University in 1989, and was promoted to Full Professor in 1999. Her projects include using tandem mass spectrometry to study reaction mechanisms and fast pyrolysis process. She is a pioneer in distonic radical cation research and laser-induced acoustic desorption. She was elected as a member of the Finish Academy of Science in 2004. She serves as a subject editor in basic mass spectrometry for Mass Spectrometry Reviews.

Honors and awards 1991 American Society for Mass Spectrometry Young Investigator Research Award 1996 National Science Foundation Career Advancement Award in the Organic Dynamics Program of the Chemistry Division 2009 Purdue University Provost's Award for Outstanding Graduate Faculty Mentor 2013 Purdue University Leadership Award of the College of Science 2015 American Chemical Society the Frank H. Field and Joe L. Franklin Award for Outstanding Achievement in Mass Spectrometry 2015 Purdue University Foundation Innovators Hall of Fame 2016 Fellow of the American Association for the Advancement of Science 2016 the Analytical Scientist The Power List 2016 the Top 50 Most Influential Women in the Analytical Sciences 2020 NASA Engineering and Safety Center Group Achievement Award, as part of the Transient Combustion Modeling for Hypergolic Engines Assessment Team

Selected publications Below is a list of articles co-authored by Kenttämaa, with over 100 citations:

Vicki H. Wysocki; Hilkka I. Kenttämaa; R. Graham Cooks (1987) "Internal energy distributions of isolated ions after activation by various methods". International Journal of Mass Spectrometry and Ion Processes 75 (2): 181–208. Krista M. Stirk; L. K. Marjatta Kiminkinen; Hilkka I. Kenttamaa (1992) "Ion-molecule reactions of distonic radical cations". Chemical Reviews 92 (7):1649–1665. David S. Pinkston; Penggao Duan; Vanessa A. Gallardo; Steven C. Habicht; Xiaoli Tan; Kuangnan Qian; Murray Gray; Klaus Müllen; Hilkka I. Kenttämaa (2009) "Analysis of asphaltenes and asphaltene model compounds by laser-induced acoustic desorption/Fourier transform ion cyclotron resonance mass spectrometry". Energy Fuels 23 (11): 5564–5570. David Borton, II; David S. Pinkston; Matthew R. Hurt; Xiaoli Tan; Khalid Azyat; Alexander Scherer; Rik Tykwinski; Murray Gray; Kuangnan Qian; Hilkka I. Kenttämaa (2010) "Molecular structures of asphaltenes based on the dissociation reactions of their ions in mass spectrometry". Energy Fuels 24 (10): 5548–5559. Trenton H. Parsell; Benjamin C. Owen; Ian Klein; Tiffany M. Jarrell; Christopher L. Marcum; Laura J. Haupert; Lucas M. Amundson; Hilkka I. Kenttämaa; Fabio Ribeiro; Jeffrey T. Miller; Mahdi M. Abu-Omar (2013) "Cleavage and hydrodeoxygenation (HDO) of C–O bonds relevant to lignin conversion using Pd/Zn synergistic catalysis". Chemical Science 4 (2): 806–813. Trenton Parsell; Sara Yohe; John Degenstein; Tiffany Jarrell; Ian Klein; Emre Gencer; Barron Hewetson; Matt Hurt; Jeong Im Kim; Harshavardhan Choudhari; Basudeb Saha; Richard Meilan; Nathan Mosier; Fabio Ribeiro; W. Nicholas Delgass; Clint Chapple; Hilkka I. Kenttämaa; Rakesh Agrawal; Mahdi M. Abu-Omar (2015) "A synergistic biorefinery based on catalytic conversion of lignin prior to cellulose starting from lignocellulosic biomass". Green Chemistry 17 (3): 1492–1499. Hao Luo; Ian M. Klein; Yuan Jiang; Hanyu Zhu; Baoyuan Liu; Hilkka I. Kenttämaa; Mahdi M. Abu-Omar (2016) "Total utilization of miscanthus biomass, lignin and carbohydrates, using earth abundant nickel catalyst". ACS Sustainable Chemistry & Engineering 4 (4): 2316–2322. Book chapter

Kawthar Z. Alzarieni; Hilkka I. Kenttämaa. "The distillation precipitation fractionation mass spectrometry (DPF-MS) method for molecular profiling of crude oil" in The Chemistry of Oil and Petroleum Products. Merv Fingas (Ed.). De Gruyter 2022.

Patent applications High power laser induced acoustic desorption probe (2007) US 7619217 B2 Laser-induced acoustic desorption/atmospheric pressure chemical ionization of compounds(2011) US 8344319 B2 Sample deposition chamber for laser-induced acoustic desorption (liad) foils (2012) WO 2013103417 A3 Differentially pumped dual linear quadrupole ion trap mass spectrometer (2015) US 9496127 B2 Multichannel Pulsed Valve Inlet System (2019) US

References

Worked examples

Example 1 — a first encounter with Hilkka I. Kenttämaa

Start with the simplest possible case. Write down what Hilkka I. Kenttämaa claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Hilkka I. Kenttämaa before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Hilkka I. Kenttämaa ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Hilkka I. Kenttämaa

In research: Hilkka I. Kenttämaa appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Hilkka I. Kenttämaa in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Hilkka I. Kenttämaa is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fellows of the American Association for the Advancement of Science, Finnish biochemists, Living people, so understanding it makes those chapters shorter.
In everyday life: Look for Hilkka I. Kenttämaa outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Hilkka I. Kenttämaa in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Hilkka I. Kenttämaa means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Hilkka I. Kenttämaa out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Hilkka I. Kenttämaa in simple terms?

Why does Hilkka I. Kenttämaa matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Hilkka I. Kenttämaa?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Hilkka I. Kenttämaa.