13 June 2000
You indeed have a very impressive and informative website. (USA)

11 October 2000
The concept of making your company's website into a reference information point is very good - I will point it out to my students in instrumental analysis when we cover ISE's and might make even more use of it if/as you add more generic material. (USA)

3 February 2001:
Dear Nico2000, I have a few questions about your ISEs. I have visited your website at www.nico2000.net and was impressed. (USA)

8 March 2001:
In reading through the excellent Beginners Guide to ISE measurements... (UK)

4 April 2001:
I'm a chemistry student in Montreal. I have a project to do on a Nitrate ISE experiment. I just wanted to let you know that the Nico website (and in particular the Beginner's Guide) are an invaluable resource. They're clearly written, accessible, and complete. Thanks so much for making them. (Canada)

5 October 2001:
I came across your excellent article on ISE's .....(UK)

12 October 2001:
Thank you for your help. I think I have a better understanding about ISE method with your information. Thank you very much. (China)

13 October 2001:
My PhD students and myself appreciate very much this web site. Thank you again. Best wishes. (Rumania)

8 November 2001:
Thanks for your message, which I have read with interest. I have already added your site to my bookmarks. (USA)

31 January 2002:
I teach and conduct research in the general area of electroanalytical chemistry. I have not fully checked the web site yet, but I am always looking for sites to refer my students to for information and data. (USA)

11 April 2002:
Thank you for all of the very useful ISE information which I was able to download using Explorer . .. (Canada)

24 Sept. 2002:
First let me thank you for taking the time to write that Beginner's Guide to ISE Measurement, it was very helpful. (USA)

1 January 2003
Subject: Wow! Great ISE web site!
I looked at your website with information on ISE's and will definitely point it out to my students. I may even make some of it required reading for them, since the instrumental analysis textbook gives ISE's less space than I think they deserve. I suppose there are hundreds of ISE's in use for every polarography apparatus, so they should have more emphasis in the electrochemical techniques classes.
Thanks for providing this public service! (USA)

4 April 2003
I have passed through your company www pages. They are really impressive. Congratulations! (Finland)

8 April 2003
I wanted to send you a brief “thank you” for your paper on ion-selective electrodes. I think it is well-written and will be very helpful for an undergraduate student research project I am beginning next semester. (USA)

29 April 2003
I have really enjoyed the nico website, but particularly your Beginners guide section. I would be happy to have the positive comments I made about your paper (see 8 April, above) attributed to me on the website.
( LeAnn Davis, Freed-Hardeman University, Henderson, TN 38340, USA)

13 July 2003
I have (at last) managed to have a serious look at your web-site, and I have to say it is very impressive. You seem to have established a very comprehensive site, and the wealth of detail about each individual instrument and the associated methodology is creditable. I found it very easy to follow. (UK)

6 September 2003
I am very frequently using your web site: "A Beginners Guide to Ion-Selective Electrode Measurements" for my research work. This web site information is very useful for all students who are working in this area. (Research student at Institute of Engineering and Technology, India)

9 February 2004
Message from a Professor to his students:
Subject: ISE Beginner's Guide
Dear IA Class, Doctor Rundle has prepared for you "A Beginners Guide to Ion-Selective Electrode Measurements". It's available at http://www.nico2000.net/Book/Guide1.html. (USA)

12 March 2004
I am pleased that you are putting together an ISE bibliography on the web. I hope to update my links for the chemistry courses soon and will surely include a link to your web site. (USA)

21 June 2004
Hi. My name is Jess and I am a second year chemistry student. I just wanted to say I found your website extremely helpful!!! I was really struggling to understand electrochemistry and coming up to the exam i was pretty stressed. Thank you so much for taking the time to share your knowledge in such an easy to comprehend way. (Australia)

7 September 2004
I just want to say you a big thank you for your website. I'm a teacher of technical course in analytical chemistry in Quebec in Canad. Your website help me very much to identify when use ISE. Your the only one to say that. (Canada)

2 October 2004
I just want to say you BIG thank you. It will help students in chemistry college to work with ISE with more knowledge and be sure that i will put nico2000 and your name in my lesson. These students will be the next employees who will buy ISE electrode. Again many thanks to care of education and thank you for your fast answering. (Quebec, Canada)

21 January 2005
In the course of my wandering today on the internet in search of the latest information on ISE nitrate determination, I came across the NICO2000 website and your 'A Beginners Guide to Ion-Selective Electrode Measurements' book which I have just started to read in earnest. Many thanks for producing this book... I am finding your book like a breath of fresh air ...
( Denis Rice, Consulting Analytical Chemist, Katoomba, New South Wales, Australia )

27 January 2005
First I want to congratulate you about the most informative quide you offer online about ISEs operation "A Beginners Guide to Ion-Selective Electrode Measurements". It is a very comprehensive and explanatory guide very helpful for people that use ISEs. (USA)

22 March 2005
I took a look at your site a couple of hours ago... and I want to tell you that I'd really love to trade links with you. I think your site has some really good stuff related to my site's topic of monitors and would be a great resource for my visitors as it deals with some great aspects of monitors that I'd like to give my visitors more information about. In fact, I went ahead and added your site to my Monitors HQ Resource Directory at http://www.monitorshq.com/multimonitors. (USA)

27 June 2006
Your website http://www.nico2000.net/Book/Guide1.html ( A Beginners Guide to Ion-Selective Electrode Measurements ) has been selected as one of the best educational resources on the Web by StudySphere. StudySphere is one of the Internet's fastest growing sites of educational resources for students, teachers and parents. StudySphere has scoured the Internet to select only the finest sites to be included within its listing of educational links.
If you would like to display this award you can place this logo on your site and link it to
www.studysphere.com

15 November 2006
I prefer to purchase the ELIT electrode as it is not a combination electrode, and as I was impressed by the highly informative and useful information on your website. (Israel)

18 April 2010
I want to congratulate you on your website, it is one of the finest I have ever seen. I have visited hundreds of technical websites and NICO2000 is one of my top two. It is head and shoulders above the crowd. (CEO and Engineering Manager, Product Development. USA)

10 June 2010
We are interested in purchasing your chloride ion selective electrode. I have read all your exhaustive literature about this technique and I am really impressed by your clear presentation of the subject. (Building Materials research Manager, Slovenia)

30 June 2010
I recently completed a 3-month trial study deploying NICO2000 chloride ISEs in creeks, including deploying five electrodes in a single location and using weekly grab samples to qualify the electrodes and evaluate electrode drift. I was extremely happy with the chloride electrode performance and found that they appeared stable for 90 days basically without maintenance. (Environmental testing laboratory, USA)