Author | Howard Mark

21 Terrace Avenue

Suffern

New York

10901

Howard Mark serves on the Editorial Advisory Board of Spectroscopy and runs a consulting service, Mark Electronics that provides assistance, training, and consultation in near-IR spectroscopy as well as custom hardware and software design and development.

Articles

More About CLS, Part 2: Spectral Results (Not Needing Constituent Values) and CLS

February 01, 2020

Spectroscopy

Article

A previous analysis of data is compared to the results achieved using classical least squares and principal component analysis. What did we learn?

Review of New Spectroscopic Instrumentation 2019

May 01, 2019

Spectroscopy

Article

Our annual review of products introduced at Pittcon or during the previous year

Using Reference Materials, Part I: Standards for Aligning the X-Axis

February 01, 2019

Spectroscopy

Article

The use of reference materials to align or test the wavelength–wavenumber axis for optical spectroscopy is essential for quantitative and qualitative methods. This article provides details for using reference materials with ultraviolet, visible, near-infrared, infrared, and Raman spectroscopy methods.

Outliers, Part III: Dealing with Outliers

October 01, 2018

Spectroscopy

Article

What are the steps to take once an outlier is discovered? There are several options.