Update on NOBIAS CHELATE-PA1 resin

Thank you to the 57 respondents to the survey sent out in September-October 2024. As a result of the survey, Japanese colleagues led by Jun Nishioka (GEOTRACES SSC co-chair, Hokkaido University) contacted HITACHI to advocate the continued production of NOBIAS CHELATE-PA1 resin.

Unfortunately, the company confirmed its decision to discontinue the production of the resin NOBIAS CHELATE-PA1.

The reasons given are as follows: “Solid-phase extraction columns with various features were developed, leading to diversification of pre-treatment. This led to a decrease in the number of product shipments, combined with rising material costs, unfortunately, then sales of the product have been discontinued.”

Some alternative resins for NOBIAS PA1 and related references

Alan Hsieh, National Taiwan University, has compiled a list of alternative resins suggested by those who participated in the survey, along with related references. This list is provided below:

1. Presep PolyChelate ( Fujifilm Wako Pure Chemicals):
https://labchem-wako.fujifilm.com/jp/category/00995.html

Kagaya, S., E. Maeba, Y. Inoue, W. Kamichatani, T. Kajiwara, H. Yanai, M. Saito, and K. Tohda. (2009) A solid phase extraction using a chelate resin immobilizing carboxymethylated pentaethylenehexamine for separation and preconcentration of trace elements in water samples. Talanta  79, 146–152. https://doi.org/10.1016/j.talanta.2009.03.016

2. InertSep ME-1 or InertSep ME-2 (GL Sciences):
https://www.glsciences.com/product/spe_columns/inertsep_series/01059.html
https://www.glsciences.com/product/spe_columns/inertsep_series/01060.html

Kagaya, S., Aoki, Y., Saeki, Y., Goto, T., Ohki, M., Obata, I., Saito, M., Shirota, R., & Gemmei-Ide, M. (2017) Applicability of InertSep ME-2 to Solid-Phase Extraction of Trace Elements. Bulletin of the Society of Sea Water Science, Japan, 71, 282-290.  https://doi.org/10.11457/swsj.71.5_282

3. Toyopearl AF-Chelate-650M (Tosoh Bioscience):
https://separations.us.tosohbioscience.com/Process_Media/id-8154/TOYOPEARL_AF-Chelate-650M

Willie, S., Sturgeon, R.E. (2001) Determination of transition and rare earth elements in seawater by flow injection inductively coupled plasma time-of-flight mass spectrometry. Spectrochimica Acta Part B: Atomic Spectroscopy 56, 1707–1716. https://doi.org/10.1016/S0584-8547(01)00263-4

4. Nitriloacetic Acid (NTA) Superflow resin

Lohan, M.C., Aguilar-Islas, A.M., Franks, R.P., Bruland, K.W. (2005) Determination of iron and copper in seawater at pH 1.7 with a new commercially available chelating resin, NTA Superflow. Analytica Chimica Acta 530, 121–129.  https://doi.org/10.1016/j.aca.2004.09.005

5. 8-hydroxyquinoline (8-HQ)

Sohrin, Y., Iwamoto, S., Akiyama, S., Fujita, T., Kugii, T., Obata, H., Nakayama, E., Goda, S., Fujishima, Y., Hasegawa, H., Ueda, K., Matsui, M. (1998) Determination of trace elements in seawater by fluorinated metal alkoxide glass-immobilized 8-hydroxyquinoline concentration and high-resolution inductively coupled plasma mass spectrometry detection. Analytica Chimica Acta 363, 11–19.  https://doi.org/10.1016/s0003-2670(98)00074-9

A review of trace element preconcentration methods in seawater and porewater:

Haryanto, M.J., Zhang, J., Kagaya, S., Horikawa, K., Nahar, M.S. (2024) Preconcentration strategies for trace metals including REEs in seawater and porewater by employing commercial chelating resin – A review. Microchemical Journal 206, 111526. https://doi.org/10.1016/j.microc.2024.111526

Seth John’s laboratory has carried out tests on Presep PolyChelate and InertSep ME-1/ ME-2. Anyone interested in the results can contact Seth John: seethjohnNO SPAM -- FILTER@NO SPAM -- FILTERusc.edu.

Those interested in receiving the results from the survey can contact the GEOTRACES IPO (ipoNO SPAM -- FILTER@NO SPAM -- FILTERgeotraces.org).

Thank you to Alan Hsieh for coordinating this effort. Also thanks to Jun Nishioka and colleagues for contacting HITACHI.