Let me one guess (just a specualtion). Do you want values split to columns? If so, just use the udf like that:

SELECT *

INTO #test

FROM (VALUES ('10.0||14.5'), ('2||34'), ('7.1||19'), ('4||11.7') ) v(val)

;

SELECT val, v1.Item, v2.Item

FROM #test

CROSS APPLY (SELECT Item FROM dbo.DelimitedSplit8k(val,'|') WHERE ItemNumber = 1) v1

CROSS APPLY (SELECT Item FROM dbo.DelimitedSplit8k(val,'|') WHERE ItemNumber = 3) v2