A syringer holder modification to the Hewlett-Packard 7671A Autosampler to allow the use of more robust syringes
✍ Scribed by Peter G. Robinson
- Book ID
- 104146581
- Publisher
- Elsevier Science
- Year
- 1974
- Tongue
- English
- Weight
- 609 KB
- Volume
- 97
- Category
- Article
- ISSN
- 1873-3778
No coin nor oath required. For personal study only.
✦ Synopsis
A problenl which 1~1s been esperienced with the Hewlett-Packard
Model 7671A Autosampler is the tendexy for syringe needles nnd/or pIungers to be bent during operation_ This can be due to a mriety of causes, including incorrect alignment of the injection unit_ TL too viscous snnlple, a too rapid plunger speed and rt dirty syringe aesdle or bat-t-e!_ After attempting the remedies su,, nnested in the approprinte ninnual~l without success_ it wnsdrcided to modify the s>*ringe holder assembly to take Scientific Glass En+xzring (S-G-E., Melbourne, Australia) Type A 5 or IO-$ fixed needle syringes. These htlvc stronger piuners and needles than the syringes normally supplied with the AutosrmpIer.
The nloditied syringe holder is shown in Fig_ l_ The body of the holder is made from brttss tubing. 63 nlnl :-: 11 nun 0-D.
:-: S-5 nlm I.D. A 30-nun length of brttss