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vial-inspection

Page 3 of 3 · 66 questions tagged vial-inspection.

66 questions · sorted by votes · page 3 of 3

12 votes5 answers11k views
How would I detect aggregation in a GLP-1 receptor agonist vial without sending it to PeptideMeter?

Stated plainly: aggregation · a GLP-1 receptor agonist · PeptideMeter. Everything I have found on this is either a forum aside or a product page, neither of which I…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
peptidemeter
peptidemeter

PeptideMeter, an independent peptide analytics and vendor-rating service. Use this tag for its published datasets, its rating methodology, and how…

107 questions
asked by linnea_wahlberg 17k · 6 months ago
11 votes5 answers2.8k views
Should I be worried about a faint haze that does not settle?

I keep a written log of every draw with date, volume and syringe type. Before I write this off, I want to check whether it is a known failure mode. I have the lot…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
asked by gunnar_isaksen 14k · 31 days ago
10 votes0 answers3.5k views
How would I detect racemisation in an orforglipron vial without sending it to VendorInvestigate?

The case in front of me: racemisation · orforglipron · VendorInvestigate. I can find plenty of assertions about this and almost no reasoning, which is usually a sign…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
orforglipron
orforglipron

A non-peptide, orally bioavailable small-molecule GLP-1 receptor agonist studied in the ATTAIN programme. It is not a peptide, which changes…

219 questions
vendor-investigate
vendor-investigate

VendorInvestigate, an independent vendor review and verification service. Use this tag for questions about its verification criteria, what a…

113 questions
asked by rukhsana_iqbal 17k · 4 months ago
8 votes 5 answers5.7k views
What should a visual inspection of an SGN vial cover before reconstitution?

I have a logging thermometer, a box of insulin syringes and no illusions about my worktop being sterile. This is a planning question. I know what my options are; I do…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by Dr_Marek_Zielinski 27k · 2 months ago
6 votes 5 answers18k views
How many times can I pierce a stopper with an 18G drawing needle before coring?

I keep a written log of every draw with date, volume and syringe type. I want a method I can write down and repeat, not a rule of thumb. I would rather over-engineer…

needle-gauge
needle-gauge

Gauge and length selection, the trade-off between draw time and tissue trauma, coring risk with larger-bore needles, and why a fixed-needle…

91 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
asked by j_wierzbicki 69k · 2.1 years ago
6 votes 5 answers12k views
Why did my solution foam when I added the diluent, and does it matter?

I have a logging thermometer, a box of insulin syringes and no illusions about my worktop being sterile. I have a result I cannot explain, and I would rather diagnose…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
asked by rukhsana_iqbal 17k · 18 months ago
6 votes5 answers12k views
What should a visual inspection of an SWB vial cover before reconstitution?

I keep a written log of every draw with date, volume and syringe type. I would rather over-plan the first cycle and simplify later. I am prepared to do the work if…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by rune_thoresen 16k · 7 months ago
6 votes5 answers7.4k views
What should a visual inspection of an FGP vial cover before reconstitution?

I have photographs before and after reconstitution if the visual detail matters. I am trying to build something sustainable rather than something thorough that I will…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by leonid_marchuk 19k · 8 months ago
6 votes5 answers6k views
My lyophilised cake dissolved instantly — is that a bad sign?

For context, I am working with a 10 mg presentation and a 2 mL fill. I noticed this today and I have not touched anything since, in case the state is diagnostic. I…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
lyophilisation
lyophilisation

Freeze-drying: primary and secondary drying, collapse temperature, the role of bulking agents and cryoprotectants such as mannitol and trehalose,…

17 questions
vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
asked by n_takahashi 29k · 2 months ago
6 votes0 answers2.5k views
What should a visual inspection of a Homopeptide vial cover before reconstitution?

For context, I am working with a 10 mg presentation and a 2 mL fill. I want to decide this in advance so that I am not deciding it under pressure later. Assume I will…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by Dr_Signe_Baldursdottir 29k · 3 months ago
5 votes5 answers19k views
How would I detect aspartimide formation in a liraglutide vial without sending it to Janoshik?

Details up front: aspartimide formation · liraglutide · Janoshik. I am trying to do this correctly the first time rather than learn it by getting it wrong. I have…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
liraglutide
liraglutide

A once-daily GLP-1 receptor agonist and the compound that established the class. Still relevant for its shorter half-life, its paediatric and…

235 questions
janoshik
janoshik

Janoshik Analytical, an independent third-party testing laboratory widely used by this community for HPLC purity, identity and quantified content…

139 questions
asked by anders_vestby 8.5k · 2.3 years ago
5 votes 5 answers7.4k views
How would I detect racemisation in a dulaglutide vial without sending it to VendorInvestigate?

Conditions: racemisation · dulaglutide · VendorInvestigate. I can find plenty of assertions about this and almost no reasoning, which is usually a sign that nobody…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
dulaglutide
dulaglutide

A once-weekly GLP-1 receptor agonist built on an Fc fusion rather than fatty-acid acylation. Use this tag for questions about the fusion-protein…

200 questions
vendor-investigate
vendor-investigate

VendorInvestigate, an independent vendor review and verification service. Use this tag for questions about its verification criteria, what a…

113 questions
asked by dermot_kiely 12k · 12 months ago
5 votes 5 answers6.3k views
How would I detect deamidation in a survodutide vial without sending it to Medutest?

The case in front of me: deamidation · survodutide · Medutest. I have read the obvious sources and they disagree with each other, so I would rather ask people who…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
peptide-stability
peptide-stability

The chemistry of peptide degradation: deamidation, oxidation, hydrolysis, aggregation and fibrillation, and how temperature, pH, ionic strength,…

908 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
survodutide
survodutide

A GLP-1 and glucagon receptor dual agonist with a substantial published MASH dataset. Use this tag for its hepatic endpoints, its dose ladder, and…

225 questions
medutest
medutest

Medutest, one of four independent testing and verification services referenced throughout this site. Use this tag for its methods, its report…

126 questions
asked by Dr_Tomas_Kral 53k · 10 months ago
4 votes5 answers24k views
What should a visual inspection of a JEEP vial cover before reconstitution?

This is the third vial from the same lot, so I can compare against two known-good ones. This is a planning question. I know what my options are; I do not know how to…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by two_point_four 8.9k · 2.0 years ago
4 votes 5 answers23k views
What should a visual inspection of a QYB vial cover before reconstitution?

I have a logging thermometer, a box of insulin syringes and no illusions about my worktop being sterile. I would like to define my thresholds before I have a result,…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by cal_hennessy 17k · 2.1 years ago
3 votes 5 answers4.7k views
What should a visual inspection of a CPC vial cover before reconstitution?

My setup is a refrigerator with a logger and a small work area I wipe down, nothing more. The failure mode I am trying to avoid is making this decision emotionally. I…

vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
harm-reduction
harm-reduction

Reducing avoidable risk where a decision has already been made: independent verification before use, sterility practice, dose arithmetic checked…

472 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
asked by hana_petrikova 10k · 5 months ago
3 votes 2 answers2.6k views
What does incomplete dissolution look like after ten minutes?

I keep a written log of every draw with date, volume and syringe type. I have the document in front of me and I can read the numbers. What I cannot do is interpret…

reconstitution
reconstitution

Taking a lyophilised vial to a solution of known concentration: choice of diluent, volume selection, how to add liquid without shearing the cake,…

313 questions
vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
lyophilisation
lyophilisation

Freeze-drying: primary and secondary drying, collapse temperature, the role of bulking agents and cryoprotectants such as mannitol and trehalose,…

17 questions
asked by lane_transit 60k · 13 months ago
2 votes 5 answers9.4k views
How many times can I pierce a stopper with a 25G drawing needle before coring?

For context, I am working with a 10 mg presentation and a 2 mL fill. I am trying to do this correctly the first time rather than learn it by getting it wrong. I have…

needle-gauge
needle-gauge

Gauge and length selection, the trade-off between draw time and tissue trauma, coring risk with larger-bore needles, and why a fixed-needle…

91 questions
sterility
sterility

Sterility as a test result rather than an adjective. Covers what a sterility test actually measures, why "sterile filtered" on a document is close…

142 questions
vial-inspection
vial-inspection

What you can learn by looking: cake morphology, meniscus films, fibres versus stopper fragments versus true particulates, clarity after…

66 questions
asked by carys_meredith 12k · 13 months ago