High Purity Gas Cost Comparison Tool for Gas Chromatographers

This interactive tool helps gas chromatographers discover how Air Products BIP® technology gases can save you money, when you consider the total costs rather than just the price of the cylinder. Insert your own cylinder prices and edit the number of GC’s in your lab along with other relevant information to discover how much you could save.

Helium BIP®
6.0 Grade

Helium Brand
X 6.0 Grade

Gas cylinder cost (£)

Gas Cost for Helium BIP®

Gas Cost Helium Brand X 6.0 Grade

Gas volume (m3), 47 litre cylinder (200 bar)

8.1

Usage volume *

92%

80%

Gas cost per usable m3

Usable gas per cylinder (m3)

GCs and Gas Consumption

Number of GCs

Flow rate, (ml/min) **

Flow rate

Cylinder consumption over a 24-month period *****

Cost of gas, 24-month period

£0

Saving per year using BIP®

£0

Purifier Costs Over a 24-month Period

Assume purifiers require changing every 8 cylinders

Number of sets required over 24-month period

Disposal (£40 per disposal), 1 disposal

Ongoing maintenance of purifier line

£300

Overall spend on in-line purifiers ****

Total

£0

GC Operating Hours/Days

Operational days per week

Operational hours per day

GC Column Costs

Expected column life *** (months)

Number columns over 24-month period

Average column cost (£)

Average column cost

Column cost, per GC, over 24-month period

Column cost for 20 GCs over a 24-month period

£0

Helium BIP®
6.0 Grade

Helium Brand
X 6.0 Grade

Total 24-month running cost:

£0

Total annual running cost:

£0

Savings per year using BIP® technology gases

£0

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* Most users will leave 15-25% of gas in the cylinder to avoid moisture contamination.

** Use varies, between manufacturers and GC analysis (20-50ml/min).

*** Dependent upon a number of variables, value is estimated average based upon:
Laboratory carrying out headspace for VOC, column could last >12 months.
Laboratory carrying out TPH (Total Petroleum Hydrocarbons) in soil, column could last <1 month.
BIP product range, with its low level of key impurities lengthens the lifespan of an average GC column.

**** Average cost of Oxygen, Moisture and Total Hydrocarbon purifiers is £250 each.

***** A 50-week year has been assumed.