According to the manufacturer (http://www.sabo.com/sabo/products_and_markets.php?market_id=3&family_id=44&product_id=362) it is a isodecyl alcohol with 7 ethoxylates (http://pubchem.ncbi.nlm.nih.gov/rest/chemical/isodecyl+alcohol) as for the analitical method I dont have a good reference handy right now, but i am sure that if you search ISI for isodecyl alcohol you'll get a few hits.
MALDIMS and ESIMS are the methods of choice for analysis surfactants. We have some papers on that already in ResearchGate. See boon and Hoogland
The chemical composition of (SABOPAL ID 7/95) is listed as (Isodecyl alcohol 7 EO); isodecyl alcohol with ethylene oxide (EO). According to the number of ethylene oxide units (ethoxylation degree), products with different HLB values (hydrophilic-lipophilic balance) can be obtained. The HLB value for (SABOPAL ID 7/95) is listed at 12.8. The general formula may be represented by: R O (CH2 CH2 O)n H Where: n = average number of ethylene oxide moles (EO). R = isodecyl alcohol carbon chain.
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