# Page Not Found

The URL `library-preparation/general/library-preparation-general-faq-list/000006576` does not exist. This page may have been moved, renamed, or deleted.

## Suggested Pages

You may be looking for one of the following:
- [How much PhiX to spike in for well balanced, base diverse libraries?](https://knowledge.illumina.com/library-preparation/general/library-preparation-general-faq-list/000006972.md)
- [Should index reads be performed if only one library is being sequenced?](https://knowledge.illumina.com/library-preparation/general/library-preparation-general-faq-list/000006541.md)
- [What do (S), (M), and (L) mean in Illumina library prep kit names?](https://knowledge.illumina.com/library-preparation/general/library-preparation-general-faq-list/000006971.md)
- [What is the minimum library size that can be sequenced?](https://knowledge.illumina.com/library-preparation/general/library-preparation-general-faq-list/000006540.md)
- [Can Illumina RNA Prep with Enrichment library prep and enrichment reagents be purchased separately?](https://knowledge.illumina.com/library-preparation/general/library-preparation-general-faq-list/000006623.md)

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```
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```

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`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

### Option 2 — Browse the documentation index

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Use this to discover valid page paths or navigate the documentation structure.

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Full export: https://knowledge.illumina.com/llms-full.txt

Use this to access all content at once and perform your own parsing or retrieval. It will be more expensive.

## Tips for requesting documentation

Prefer `.md` URLs for structured content, append `.md` to URLs (e.g., `/library-preparation/general/library-preparation-general-faq-list/000006972.md`).

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