XRF SAMPLE TRANSFER PIPETTES FOR FILLING XRF SAMPLE CUPS AND GENERAL PURPOSE USE

Chemplex transfer pipettes are used to conveniently fill Chemplex XRF Sample Cups with consistent volumes of samples and standards to their near volumetric capacities, minimize or eliminate any discrepancies in x-ray data attributed to dissimilar volumes, avoid spillage and prevent cross-contamination possibilities plus they are affordably priced for disposability.

How to Select the Most Appropriate XRF Sample Cup Transfer Pipette

Selection of the most appropriate transfer pipette is related to a match between the volumetric capacity of a sample cup and the dispensing volume of a pipette. For convenience of user selection, these correlations have been pre-determined, compiled and presented in the "Pipette Selection Guide" listed below. The "Guide" enables the selection of a pipette by first referring to the Chemplex sample cup that is currently or intended to be used and reading across the chart to the recommended pipette catalog number. Because of the large number of sample cup offering and different volumetric capacities, one or more sequential transfers of the same sample or standard from the same pipette, commonly referred to as “draws”, may be necessary. The number of draws required to fill a sample cup are indicated in the Guide.

How to Use Transfer Pipettes

Transfer pipettes are fabricated from unbreakable polyethylene with the bulb integrated with the stem as a single unit; transfer pipettes are not sterile.

Squeeze the bulb of the pipette to expel the air and insert the tip into the sample. Release the applied hand pressure to the bulb until the sample is completely drawn up. Insert the tip of the filled pipette into the sample cup and gently squeeze the bulb to dispense the entire sample. Repeat the procedure in instances that require additional draws to fill the sample cup. The volume dispensed from a transfer pipette can vary with each transfer in accordance with operator manipulation of the bulb.

Viscosity Considerations

The transfer of viscous substances such as petroleum, waste oils, paint and slurries is more expeditiously handled with large pipette tips. Most other materials with high fluidity characteristics are served best with pipettes having fine tips. Empirical testing is suggested for confirmation of convenience.



IDEAL FOR FILLING XRF SAMPLE CUPS

ENSURE EQUAL SAMPLE VOLUMES PER CUP

AVOID ACCIDENTAL SPILLAGE

PREVENT CROSS-CONTAMINATION

INTEGRATED BULB FOR CONVENIENCE

UNBREAKABLE POLYETHYLENE

ECONOMICALLY PRICED FOR ONE TIME USE

 

Disposability

Transfer pipettes are intended to be used once, excepting for multiple sequential draws, to avert cross-contamination possibilities. Dispose used pipettes properly in accordance with local and other accepted authorities and procedures.

Pipette Selection Guide


Sample Cup Cat. No. Pipette Cat. No. Capacity, mL Number Draws
1060 80-0204
80-0234 80-0691		 9 2
1065 80-0252 8 1
1070 80-0204
80-0234
80-0691		 13 3
1075 80-0204
80-0234
80-0691 		13 3
1080 80-0252 15 2
1083 80-0204
80-0234
80-0691		 12 3
1085 80-0204
80-0234
80-0691		 12 3
1095 80-0252 30 4
1330,
1330-SE		 80-0252 7 1
1340 80-0204
80-0234
80-0691		 12 3
1430,
1430-SE		 80-0204
80-0234
80-0691		 9 2
1440 80-0252 15 2
1440L 80-0252 25 3
1530,
1530-SE		 80-0204
80-0234
80-0691		 9.5 2
1540 80-0252 16 2
Sample Cup Cat. No. Pipette Cat. No. Capacity, mL Number Draws
1730,
1730-SE		 80-0252 7 1
1740 80-0204
80-0234
80-0691		 11.5 3
1830,
1830-SE		 80-0252 7 1
1840 80-0204
80-0234
80-0691		 12 3
1850 80-0204
80-0234
80-0691		 13 3
1930,
1930-SE		 80-0252 8 1
1940 80-0252 15 2
1940L 80-0252 25 3
1935-OX 80-0252 17 2
2132 80-0204
80-0234
80-0691		 9 2
2135 80-0204
80-0234
80-0691		 11 3
2140 80-0252 19 3
2143 80-0252 19 3
2144 80-0252 19 3
2145 80-0252 22 3
2146 80-0252 22 3
2195 80-0252 22 3
3106 80-0225 0.2 1
3110 80-0225 0.5 1
3115 80-0225 1 1
3120 80-0225 5.5 2
 

Note: The volume dispensed from a transfer pipette can vary in accordance with operator manipulation of the bulb.

General Laboratory Applications

For general laboratory applications, transfer pipettes find their greatest utility in transferring innumerable types of liquid chemicals into other laboratory containers. With Chemplex transfer pipettes this procedure is greatly simplified and performed with ease, reasonable degrees of accuracy, safety, no contamination and economically priced for disposability.

In this regard, the following table will provide the analyst with pertinent technical information on the specifics of each of the transfer pipettes.

Pipette Specifications for General Laboratory Applications

Pipette Cat. No. Description Length cm Stem Dia. mm Overall Capacity mL Bulb Draw mL Drops per mL
80-0202 General purpose; standard 15.6 7.9 7.7 3.2 20
80-0204 General purpose; large bulb 15.1 6.1 8.0 4.6 20
80-0225 Graduated 3mL; large bulb 15.5 7.9 7.5 3.2 20
80-0234 Fine tip; large bulb 14.7 6.1 8.7 4.8 45
80-0252 Large bulb 15.5 3.0 15.0 8.0 19
80-0691 62 μLiter; large aperture 13.7 6.1 9.3 4.8 ----

Specifications and Ordering Information

Pipette Cat. No. Description Pipettes/Pkg Pkgs/Case
80-0202 General purpose; standard; 15.6 cm long 500 10
80-0204 General purpose; medium tip; large bulb; 15.1 cm long 400 10
80-0225 Graduated, 3mL; large bulb; 15.5 cm long 500 10
80-0234 Fine tip; large bulb; 14.7 cm long 400 10
80-0252 Medium tip; narrow stem; large bulb; 15.5 cm long 250 10
80-0691 Large tip; 13.7 cm long 250 10
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Note: Transfer pipettes are non-sterile and sold only in complete packages. As a reminder, be certain to order the number of pipettes to correspond to the number of sample cups to be filled; Chemplex XRF Sample Cups are packaged in quantities of 100 sets.